During turbulence, if FA(s) are instructed to take their jumpseat(s), what must one FA do?

When flight attendants are instructed to take their jumpseats during turbulence, it is essential for one flight attendant to maintain communication with the pilot-in-command (PIC) regarding the cabin's status. This responsibility is critical because the PIC needs to be informed about the condition of passengers and any potential issues that could arise due to turbulence.

Reporting the cabin status ensures that the crew can effectively manage any emergencies or situations that might develop as a result of the turbulence. It prioritizes safety by keeping the cockpit informed, allowing the PIC to make necessary decisions affecting the flight. This communication is vital for coordinating efforts and ensuring that all crew members are aware of each other's situations and can respond appropriately, maintaining a comprehensive understanding of the overall safety environment.

The other options fail to address the immediate need for effective communication and situational awareness during turbulent conditions, which can be unpredictable and require prompt action and decisions from the flight crew.