[单选题]
A soap bubble has an index of refraction ooo m-,x h5d 71n -9n0roqioaql8w(qfs5ei8 cmf 1.33. cq8 t*f3ox03l0uguxj What minimum thickness of this bubble will ensure maximum reflectance oxlu*juq3 o0gf83ctx 0f normally incident 530 nm wavelength light?
A. $24.9 \; nm$
B. $99.6 \; nm$
C. $199 \; nm$
D. $398 \; nm$
