What frequency has the FCC designated for the use of bridge-to-bridge radiotelephone communications?

Correct Answer: Option B — 156.650 MHz channel 13

The Federal Communications Commission designates 156.650 MHz, corresponding to VHF Channel 13, for mandatory bridge-to-bridge radiotelephone communications under the Vessel Bridge-to-Bridge Radiotelephone Act and 47 CFR Part 80.