A Graph of Position Versus Time for an Object Oscillating

Multiple Choice

A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below.
​ ​
Use this exhibit to answer the following question(s) .
-A point or points at which the object has positive velocity and zero acceleration is(are)

A) B
B) C
C) D
D) B and D
E) A and E