Question

4 tom walked slowly along the road, stopped to look at his watch, realized he was late, and then started running.

Explanation:

1. First phase: Tom walks slowly, so distance increases with time at a low, steady slope.
2. Second phase: Tom stops to check his watch, so distance stays constant (flat line) as time passes.
3. Third phase: Tom starts running, so distance increases with time at a steeper slope than the walking phase.

Only option C matches these three sequential changes.

Answer:

C. The graph with a shallow upward slope, followed by a flat line, followed by a steeper upward slope