Which of the following will not disqualify your vehicle from being used
for the class e driving skills test?
a. an inoperable horn
b. a missing driver's side windshield wiper
c. a broken or missing door or seat
d. a crack in your windshield that doesn't affect visibility

D. A crack in your windshield that doesn't affect visibility

Explanation:

All the options given in the question will disqualify you from you E class driving test except option D where there us a crack in the wind shield but it does not effect visibility.

All the other options such as a horn, presence of driving seats, windshield wiper because all these are helpers in betters driving and safety. Absence of these can cause accidents and hindrance in safe driving.