C: electronic fuel injection system control the fuel and air flow automatically during ignition. (In fact the most modern system probably completely ignore throttle input during ignition, at least those that are drive by wire rather than mechanical connections)
For a vehicle with an EFI system, do not press down on the accelerator before or during engine startup since the system automatically regulates the air-fuel mixture. The correct answer is c. ;
For a vehicle with an EFI system, do not press down on the accelerator before or during starting the engine. EFI systems automatically manage fuel and air intake, making throttle input unnecessary. Therefore, option C is the correct choice.
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