29 INLAND ONLY Which statement is TRUE concerning the fog signal of a vessel 15 meters in length, anchored in a "special anchorage area" approved by the Secretary?

A. The vessel is not required to sound a fog signal.
B. The vessel shall ring a bell for 5 seconds every minute.
C. The vessel shall sound one blast of the foghorn every 2 minutes.
D. The vessel shall sound three blasts on the whistle every 2 minutes.