Explanation:

- Work done is calculated using the formula: Work = Force × Displacement × cos(?), where ? is the angle between the force and displacement vectors.

- Option 1: Zero

- If the force is perpendicular to the displacement, work done is zero. However, that's not the case here.

- Option 2: Positive

- Work done is positive when the force acts in the direction of displacement. In this problem, the force is anti-parallel (opposite) to displacement.

- Option 3: Infinite

- Infinite work would imply an undefined or endless force or displacement, which doesn't apply here.

- Option 4: Negative

- Work done is negative when the force is applied opposite to the displacement. Since the force is anti-parallel to displacement, the work done is indeed negative.