An Isosceles Triangle Has Equal Sides 4 Cm Long and the Included

Multiple Choice

An isosceles triangle has equal sides 4 cm long and the included angle ?. If $\frac { d \theta } { d t } = 2 \mathrm { rad } / \mathrm { min }$ when $\theta = \frac { \pi } { 3 },$ then the rate of change of the area in cm²/min is

A) -4
B) -8
C) -16
D) -32
E) -64