Need a very urgent answer with some explanation

A spring is held by cables so that it is initially compressed by 60mm. This spring is further compressed by 40mm and then released to propel a 5kg box up the incline shown in the figure. The furthest distance that the box travelled along the incline from the instant that the spring was released is 4m. Assume that the box is always in contact with the inclined surface. 4m Before 40mm After 10 1. Which of the following forces does not do work on the box? Normal Force Spring force Weight of the box None of these do work on the box