Hand written solution required

Spring WU?/ Consider the spring-mass system on a frictionless horizontal surface as shown, Initially, the block is at position s 1 where the spring is in a compressed state. The block moves to the left until it reaches the the position z2 where the spring is in a more compressed state. Which of the following is TRUE about the work done by spring Wa and change in elastic potential energy AU of the system? Direction of motion k WWW- m X2 X1 x =0 O Wal 0; AUal 0; AUal > 0 O Wal 0