The radius of sphere is increasing at a constant rate of 1 cm/sec. When the radius is 3 cm, the rate of change in volume currently is:

42π cm³/sec

42π cm³/sec

0%

9π cm³/sec

9π cm³/sec

0%

36π cm³/sec

36π cm³/sec

100%

108π cm³/sec

108π cm³/sec

0%