When should you signal a turn?

Answer: D — Before you begin the turn

Signaling before you begin the turn will give other drivers enough time to prepare for your change in direction. Option A is incorrect because signaling after pulling into the other lane may catch other drivers off guard. Option B is incorrect because signaling after making the turn is not considered safe signaling practice. Option C is incorrect because signaling just as you begin the turn does not give other drivers enough time to react. Therefore, option D is the correct answer.