The $\mathrm{C}-\mathrm{C}-\mathrm{C}$ Bond Angle in Cyclopropane Is
A) $60^{\circ}$
B) $90^{\circ}$
C)

The $\mathrm{C}-\mathrm{C}-\mathrm{C}$ bond angle in cyclopropane is

A) $60^{\circ}$ .
B) $90^{\circ}$ .
C) $109.5^{\circ}$ .
D) $120^{\circ}$ .