C10: Analyze the following scenarios:

(a) A human is sitting in a boat and throws stones to the left.

(b) A human is standing in a boat and moves to the left.

The boat will

1) move to the left for both (a) and (b).

2) stand still for (a) and (b).

3) move to the right for (a) and stand still for (b).

4) stand still for (a) and move to the right for (b).

5) move to the right for both (a) and (b).