What should you do first in case of engine failure?

Answer: A — Shift to a higher gear

In case of engine failure while driving, the first thing you should do is to grasp the steering wheel firmly, as this will help you maintain control of the vehicle. It is essential to keep a steady grip on the steering wheel to guide the vehicle to a safe location off the road. Shifting to a higher gear, turning on fog lights, or pressing the accelerator repeatedly are not appropriate responses to engine failure and may not help in this situation.