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Question:

A driver whose left arm is bent at 90 degrees, pointing downward intends to

A
Explaination

You can use hand signals instead of your vehicle's turn signals or if your vehicle's brake signals have failed. To signal a right turn, your hand and arm should be bent at 90 degrees, pointing upward. For a left turn, your hand and arm should be extended straight out to the left. To slow down or stop, your hand and arm should be bent at 90 degrees, pointing downward.