Final answer:
Annual oversight of programs and agencies occurs during hearings on appropriations, which allocate government spending, not during gerrymandering processes. The correct answer is option B.
Step-by-step explanation:
Most programs and agencies are subject to some oversight every year during the course of hearings on appropriations. The appropriations process is crucial as it determines how government funds will be spent by various programs and agencies. This differs from gerrymandering, which is the manipulation of legislative district boundaries to favor a political party or group, and is not directly related to the annual oversight hearings conducted by Congress.