Final answer:
To make good judgments in traffic, one should first search ahead, instead of relying solely on reactive measures like stopping quickly or swerving. Option C is correct.
Step-by-step explanation:
To make good judgements in traffic, you need to first c) Search ahead. This anticipatory driving approach allows you to be prepared for potential hazards or changes in traffic conditions. Knowing how to stop quickly or being able to swerve can be important in certain situations, but they are reactive measures. Searching ahead helps in predicting and planning for your actions, thereby making it the foundational step for making good judgments in traffic.
While this question does not directly equate to any of the provided sample information related to physics, it's worth noting that understanding vehicle dynamics (acceleration, stopping distances, etc.) from a physics perspective can further assist a driver in making safer decisions on the road.