The Acceleration of an Object, Starting from Rest, Is Shown

Multiple Choice

The acceleration of an object, starting from rest, is shown in the graph below. Other than at t = 0, when is the velocity of the object equal to zero?

A) During the interval from 1.0 s to 3.0 s
B) At t = 3.5 s
C) At t = 4.0 s
D) At t = 5.0 s
E) At no other time less than or equal to 5 s.