A Mass Attached to the End of a Spring Is

A mass attached to the end of a spring is pulled out and released on a surface with friction. The work ​ done on the mass by the force exerted by the spring

A) ​has the same sign as the change in energy owing to friction during one half of each cycle.
B) ​never has the same sign as the change in energy owing to friction.
C) ​always has the same sign as the change in energy owing to friction.
D) ​never has the same sign as the change in energy owing to friction if the force of friction is greater than the spring force.
E) ​always has the same sign as the change in energy owing to friction if the force of friction is greater than the spring force.