Which vessel(s) is(are) required to comply with the vessel bridge-to-bridge radiotelephone regulations while navigating?

A
All towing vessels 25 feet or less in length
B
All passenger vessels of 50 gross tons or less, carrying one or more passengers
C
Power-driven vessels 20 meters in length or longer
D
An intermittently manned floating plant under the control of a dredge
E