Final answer:
When making a left turn and yielding to traffic, keeping the vehicle's front wheels straight prevents being pushed into oncoming traffic in case of a rear-end collision.
Step-by-step explanation:
When making a left turn at an intersection, it is true that your vehicle's front wheels should be straight when yielding to traffic. By keeping the wheels straight, you ensure that if your car is hit from behind, it will not be pushed into oncoming traffic, which could result in a more severe collision. This approach is consistent with safe driving practices and is often taught in driver education courses.