What Are the Ideal Bond Angles Around a Central Atom $\degree$

What are the ideal bond angles around a central atom with a steric number of 3?

A) all 72 $\degree$
B) all 90 $\degree$
C) all 120 $\degree$
D) 90 $\degree$ and 109.5 $\degree$
E) 90 $\degree$ and 120 $\degree$