Aboard small passenger vessels the steering gear, signaling whistle, controls, and communication system shall be tested by the Master __________.

Correct Answer: Option B — before getting underway for the day's operation

46 CFR 185.510 requires the Master to test the steering gear, signaling whistle, controls, and communication systems before getting underway for the day's operation. This pre-departure verification is a critical safety practice to ensure all essential maneuvering and communication equipment functions correctly before the vessel enters service.