Question

always do this before driving anywhere.
turn off your radio.
check your lights.
buckle your seatbelt.
plug in your cell phone.

Explanation:

Seat - belt usage is a crucial safety measure before driving. Turning off the radio, checking lights, or plugging in a cell - phone are not essential pre - driving actions compared to buckling the seatbelt.

Answer:

C. Buckle your seatbelt.