Which of the following is incorrect? A. check behind your vehicle before you get in.
B. placing your left arm on the back of the seat will allow you to turn around and look directly through the rear window.
C. back quickly; your vehicle is much easier to steer at higher speeds when backing.
D. all of the above

C. back quickly; your vehicle is much easier to steer at higher speeds when backing

Explanation:

Option A which is : check behind your vehicle before you get in, is correct statement because there could be children, pedestrians, vehicles, etc at the back. This is because it is expected to check behind before one gets in.

Option B. which is: placing your left arm on the back of the seat will allow you to turn around and look directly through the rear window, is also correct statement. This is because, it allows the road users to maneuver correctly.

Option C which is: back quickly; your vehicle is much easier to steer at higher speeds when backing, is INCORRECT STATEMENT. This is because it is more difficult to maintain steering control and vehicle balance when the vehicle is in reverse, hence, it is advisable to back at slow speeds.

Hence, the incorrect statement is Option C. back quickly; your vehicle is much easier to steer at higher speeds when backing.

answer; john stuart mill's principle of utility is your answer; /// good luck