What Size Is the Television Screen Shown in the Illustration $30$

Multiple Choice

What size is the television screen shown in the illustration? Find d if a = 12 in. and b = 16 in.. .

A) $30$ in.
B) $\sqrt { 656 }$ in.
C) $20$ in.
D) $\sqrt { 160 }$ in.
E) $28$ in.