A Object on a Spring Undergoes SHM

Multiple Choice

A object on a spring undergoes SHM.When the object passes through the equilibrium position,which of the following statements about object-spring system are true? (There could be more than one correct choice.)

A) Its acceleration is zero.
B) Its speed is zero.
C) Its elastic potential energy is zero.
D) Its kinetic energy is a maximum.
E) Its total mechanical energy is zero.