Detailed Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to make a left turn [title] Turn on your left turn indicator 100 feet (30 m) before the left turn you want to make. [step] If your turn indicator is broken, you will need to signal the left turn with your arm. The following are arm signals for left turns : [substeps] If you drive on the right side of the road, use your left arm in a straight position to indicate a left turn. <sep> (A) When you turn left, use your right arm in a straight or direct line when trying to turn. A left turn signal is double-sided. (B) If you drive on the left side of the road, use your right arm in a straight position to indicate a right turn. [title] Indicate that you want to stop at a red light. (C) If you drive on the left side of the road, extend your right arm out of the window horizontally. Point it down at an angle toward the ground. (D) If you move into a corner, use your right arm to signal a right turn. If you do not move into a corner, open your right mirror and look up at the ceiling.
A:
C