Explanation
The right of withdrawal is a statutory right that allows investors to cancel their purchase order of mutual funds within a specified period of time and receive a refund of the amount they paid. The right of withdrawal is also known as the cooling-off period or the rescission right. The right of withdrawal for investors can be different depending on which province (or territory) the fund was purchased within, as each jurisdiction has its own securities legislation and regulations that govern the mutual fund industry. For example, in Ontario, the right of withdrawal is two business days after receiving the simplified prospectus or the fund facts document, whichever is later1. In Quebec, the right of withdrawal is two business days after receiving the simplified prospectus or confirmation of purchase, whichever is later2. In British Columbia, the right of withdrawal is 48 hours after receiving confirmation of purchase3. Therefore, Mariana may still be able to exercise her right of withdrawal, depending on where she bought her mutual funds and when she received the required documents. References:
Canadian Investment Funds Course (CIFC) Study Guide, Chapter 3: The Regulatory Environment, Section 3.2: The Right of Withdrawal, page 3-54 Ontario Securities Commission - Mutual Funds - Buying and Selling1 Autorite des marches financiers - Mutual Funds - Buying and Selling2 British Columbia Securities Commission - Mutual Funds - Buying and Selling3

Explanation
Contributed funds grow tax-free within the plan3. This means that any income or capital gains earned by the investments in an RESP are not taxed until they are withdrawn3. This allows the plan to grow faster than a taxable account with the same investments and contributions3. The other statements are incorrect. Contributions to RESPs are not tax deductible3. This means that you cannot deduct the amount you contribute to an RESP from your taxable income3. However, you do not have to pay tax on the contributions when they are withdrawn from the plan3. There is no yearly contribution limit per beneficiary, but there is a lifetime contribution limit of $50,000 per beneficiary3. This means that you can contribute any amount to an RESP in any given year, as long as you do not exceed the lifetime limit for each beneficiary3. RESPs must be collapsed by the end of the 35th year of its starting date3. This means that you have up to 35 years to use the funds in an RESP for educational purposes or transfer them to another plan3. If you do not use or transfer the funds by then, you have to close the plan and pay tax on the accumulated income portion3. References: Unit 8:
Retirement

Explanation
To fulfill the know your client (KYC) obligation, an advisor must collect and document information about the client's personal and financial situation, investment objectives, risk tolerance, and investment knowledge. The KYC rule is a regulatory requirement that ensures that the advisor understands the client's needs and goals, and provides suitable recommendations that match the client's profile. In this case, Cosmo has provided some information about his personal and financial situation, such as his age, occupation, income, assets, and inheritance. He has also given some indication of his investment objectives, such as saving for retirement, and his investment knowledge, such as making his own investment decisions and preferring balanced funds.
However, he has not disclosed his risk tolerance, which is his willingness and ability to accept fluctuations in the value of his investments. Risk tolerance is an important factor that affects the choice of investment strategies and products. Therefore, to complete the KYC process, the advisor needs to obtain additional information about Cosmo's risk tolerance. References:
* Canadian Investment Funds Course (CIFC) Study Guide, Chapter 1: The Investment Funds Industry, Section 1.4: The Know Your Client (KYC) Rule, page 1-111
* Know Your Client (KYC) Definition - Investopedia2