A "Third Party Demand" in payroll collections commonly refers to the CRA's Demand on a Third Party (DTP)-a legal garnishment tool used to collect a person's debt to the government by requiring a third party (such as an employer or financial institution) to redirect funds that would otherwise be paid to the debtor.
CRA guidance explains that garnishments may be issued as a Requirement to Pay (RTP), Enhanced Requirement to Pay (ERTP), or Demand on a Third Party (DTP), and that these documents apply when money normally payable to someone who owes a debt to the government must instead be paid to the CRA (or other listed federal bodies).
This aligns with option B: unpaid income tax or unpaid statutory deductions (such as payroll source deductions) can lead to CRA collection action using these legal instruments.
Child support is generally enforced under provincial/territorial family support programs, not via CRA DTP as described here. Overpaid EI benefits are typically handled through EI/Service Canada recovery processes, and
"third-party creditor debt" is not a CRA-administered debt.

The CRA's wage garnishment tool is commonly issued as a Requirement to Pay (RTP) (and related instruments such as ERTP/DTP), which directs a third party (often the employer) to redirect amounts that would otherwise be paid to the employee, and send them to the government instead. CRA guidance explains that when an employee owes money, the CRA can send the employer a requirement to pay notice, and the employer must remit the amounts as instructed (or the employer can become liable).
The legal authority for the CRA to issue a Requirement to Pay is found in the Income Tax Act, including section 224, which sets out the mechanism and consequences for non-compliance.
In payroll operations, this is a communication-and-compliance issue: payroll must correctly interpret the notice, apply the withholding/remittance as directed, and communicate impacts to internal stakeholders (HR
/finance) and, where appropriate, the affected employee-while ensuring the remittance is made exactly as the CRA notice requires.

An expense reimbursement is a repayment to an employee for business costs they already paid personally (for example, meals, mileage, supplies), typically supported by receipts or an expense report. CRA's guidance explains that a reimbursement is a payment made to repay amounts the employee spent while conducting the employer's business, and that a reasonable reimbursement is generally not included in the employee's income.
That's why reimbursements are generally not part of "earnings" for payroll calculations-they are not compensation for work performed; they are repayment of a business expense. This differs from an allowance, which is usually a fixed amount paid without requiring receipts; allowances are often taxable unless a specific CRA exception applies.
So the correct term for "dollar amounts paid to cover job expenses incurred, but not considered earnings" is expense reimbursements (option D). Payroll best practice is to ensure reimbursements are properly documented and reasonable to support non-taxable treatment.

A defined benefit (DB) pension plan promises a future pension benefit based on a formula (for example, service and earnings). Because the benefit is defined, the plan must ensure it is adequately funded to meet future liabilities. That requires actuarial valuations-professional studies that forecast future obligations and determine required contributions. Regulators describe DB plan funding as being based on actuarial calculations and require administrators to file actuarial valuation reports to establish funding and contribution requirements.
A defined contribution (DC) plan does not promise a specific future pension amount; contributions are defined, and the retirement outcome depends on investment performance-so it does not require the same ongoing actuarial funding valuations for promised liabilities. An RRSP is an individual savings plan, not an employer DB plan requiring actuarial funding reports.
Therefore, the correct answer is Defined benefit pension plan (option A).