Final answer:
The Tuition Assistance Program entitles sailors to receive financial assistance to attend college classes during off-duty hours.
Step-by-step explanation:
The program that entitles sailors to receive financial assistance to attend college classes on a voluntary basis during off-duty hours is the Tuition Assistance Program (Option A).
This program is offered by the Navy and provides financial support to active duty sailors who wish to pursue further education. Through the Tuition Assistance Program, sailors can receive funding to cover a portion or all of their tuition expenses for college classes taken during their off-duty hours.