Drone exam · Advanced operations and BVLOS Operations Regulation Safety Three unrelated alerts occur at once. What is the main benefit of pre briefed crew roles? Select one answer A Parallel monitoring without one person becoming overloaded. B More people talking at once. C Removing the need for procedures. D Guaranteeing no failures. Check answer Correct answer: A. Parallel monitoring without one person becoming overloaded. Crew design should distribute high workload deliberately.