Must squeeze the front brake lock to perform the remaining operations
Answers 1 and 3 are incorrect because there is no action to squeeze the front brake
Use the right hand force to pull the handbrake lever backward at the end of the journey; if the brake lock is stuck, push the handbrake forward, then squeeze the brake lock.
Use the right hand force to squeeze the brake lock to push the handbrake lever forward until the end of the journey; if the brake lock is stuck, pull the handbrake lever backwards and squeeze the brake lock.
Use the right hand force to push the handbrake lever forward all the way; if the brake lock is stuck, push the handbrake lever forward, then squeeze the brake lock.