You must also yield to all traffic in your path a. when making a left turn or a u-turn b. only making a left turn c. only when making a u-turn d. when driving towards vehicles turning left across your lane

The correct answer is letter A.

You must yield when making a left turn or a U-turn because both situations will mean that you need to make a turn against the correct path of the road, and everyone who is coming the other way has the priority.

When you yield and wait for your turn means that you will make a safe turn.