AS Daily A Level Physics question

A mechanic tries to loosen a tight bolt. First they push at right angles on the end of a 0.15 m spanner with a certain steady force. Then they switch to a 0.30 m spanner and push the same way with the same force at its end. What happens to the turning effect about the bolt, and why?

1. A It stays the same because the force is unchanged.
2. B It increases, but by less than double because the longer tool is heavier.
3. C It doubles because the distance from the pivot to the line of action of the force is doubled. (correct)
4. D It more than doubles because both force and distance increase.