[单选题]
What is the minimum thickness of a nonreflecting film coating (n =+pnhxr*9d h2+ .ve aqt ik)d4ie+psqhu( 6 0nl 1.30) tjyf7gw: 6rc0 54c ibp7jxj4h on a glass rj:i6gpxt04y jc745j bwfhc7 lens (n = 1.50) for wavelength 500 nm?
A. $250 \; nm$
B. $192 \; nm$
C. $167 \; nm$
D. $96.2 \; nm$
