Section: INFORMATION SECURITY PROGRAM MANAGEMENT
Explanation:
Right to audit would be the most useful requirement since this would provide the company the ability to perform a security audit/assessment whenever there is a business need to examine whether the controls are working effectively at the third party. Options B, C and D are important requirements and can be examined during the audit. A dedicated security manager would be a costly solution and not always feasible for most situations.

Explanation
The safety of an organization's employees should be the most important consideration given human safety laws. Human safety is considered first in any process or management practice. All of the other choices are secondary.