A man pushes a wall and fails to displace it, he does:

Explanation

Option A: Negative work occurs when the force applied to an object is in the opposite direction of the displacement. In the given scenario, the wall does not move in any direction, so no work is done, let alone negative work.Option B: Positive work is done when the force applied to an object is in the same direction as the displacement. However, in this case, since the wall does not move at all, no work is done, and therefore it cannot be considered positive work, let alone maximum.Option C: Work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. In this case, although the man is applying a force by pushing the wall, the wall does not undergo any displacement in the direction of the force. Since there is no displacement, no work is done on the wall.Option D: This option does not apply in this scenario. Maximum work would imply that the force applied is in the same direction as the displacement and is exerted with the maximum possible magnitude. However, since no displacement occurs when the man pushes the wall, there is no work done, let alone maximum work.