Question

which quote from the story best supports the idea that the narrators father is disturbed upset when he returns?
the engine was still running, although the firefighters had already climbed off.
dad was sitting in the drivers seat, covered in soot. i climbed up and sat next to him.
his soot-covered hand moved toward the ignition switch but quickly dropped back down to his lap.

Explanation:

The first quote only notes the running engine, showing no sign of the father's emotional state. The second describes his physical state and presence but no disturbance. The third shows an unsteady, hesitant action that reflects inner upset or distraction, which directly supports the idea he is disturbed.

Answer:

His soot-covered hand moved toward the ignition switch but quickly dropped back down to his lap.