Final answer:
The Act regarding privileges and benefits for members of the Naval Service could refer to the Uniform Code of Military Justice, various Naval Acts, or other military personnel legislation incorporating equal opportunity regulations and benefits.
Step-by-step explanation:
The Act that provides for certain privileges and benefits for members of the Naval Service is not explicitly named in the information provided. However, based on the provided context clues such as the power of Congress over the navy, the role of the President as Commander in Chief, and the reference to non-discrimination acts extended in the 1970s and updated later, one could infer that this might be referencing a combination of the Uniform Code of Military Justice (UCMJ), the various Naval Acts, and possibly aspects of broader legislation that governs military personnel rights and benefits, such as the Servicemembers Civil Relief Act or the G.I. Bill which provides various benefits to servicemembers.
For example, the UCMJ sets forth the laws that govern the military services, including the Navy. Throughout U.S. history, various Naval Acts have also contributed to the structure, regulations, and benefits of the Naval Service. Amendments and renewals of laws could relate to further provisions for equal opportunities and treatment for service members of various backgrounds.