Final answer:
The document defining acceptable uses of a firm's information resources and computing equipment is the Acceptable Use Policy. It includes guidelines on the proper use of technology, prohibited activities, and user responsibilities, thus ensuring ethical and legal use of IT resources.
Step-by-step explanation:
The document that defines acceptable uses of a firm's information resources and computing equipment is known as an Acceptable Use Policy (AUP). This policy outlines the rules and guidelines for the proper use of the organization's technology and data.
An AUP commonly includes sections on user responsibilities, prohibited activities, and consequences for violations. It is designed to protect the firm's digital assets and ensure that IT resources are used ethically and legally. To compare with other options, a Security Protocol refers to the technical rules and procedures used to secure data and communications, a Code of Conduct is a broader document outlining expected behavior and ethics within an organization, and a Privacy Policy dictates how an entity will protect personal or sensitive information it collects.
Therefore, the correct answer for the document that specifically governs acceptable use of IT resources is C. Acceptable Use Policy.