What determines the transmitting frequency privileges of an amateur station?

Answer: D. The class of operator license held by the control operator

A station's transmitting privileges depend on the class of operator license held by the control operator (FCC rule 97.103). Frequencies are not printed on the license, and having a higher-class ham in the room does not count unless that person is the control operator.

Tip: Privileges follow the control operator, not the station.

FCC rule reference: Part 97.103(b)