Which of the following statements about retarders are correct
a. Retarders help slow a vehicle, reducing the need for braking.
b. You should turn the retarder off whenever the road is wet, icy, or snow-covered.
c. When your drive wheels have poor traction, the retarder may cause them to skid.
d. All of the above statements are correct.
Ans: d. All of the above statements are correct
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