When driving, what is the safest practice regarding following distance from the vehicle ahead in ideal conditions?

✓ Correct Answer: Option B

The 'two-second rule' is a widely recommended guideline for safe following distance. It means you should allow at least two seconds to pass between the time the vehicle ahead of you passes a fixed point and the time your vehicle reaches the same point. This provides adequate time to react and stop safely. In adverse conditions (rain, snow, heavy traffic), this distance should be increased.