What must BOTH parts of communication do for it to work?

• A. Transmit OR receive correctly
• B. Transmit AND receive correctly
• C. Only transmit correctly
• D. Only receive correctly

Answer: (B)

Effective communication relies on both sides handling the message: you must send it clearly and the other person must receive and interpret it correctly. If you only transmit well, the message might not be heard or understood, so nothing useful gets accomplished. If you only receive well, you can understand what’s said but there’s nothing for you to respond with, leaving the exchange incomplete. In aviation, this two-way flow is essential: clear transmission and accurate reception (often with explicit readbacks and confirmations) ensure everyone understands the instruction and can act appropriately. So, the process works only when both transmitting and receiving are correct.