Light in Air with Index of Refraction N₁ = 1

Light in air with index of refraction n₁ = 1.00059 is incident perpendicularly on a coated lens as shown.The coating of the lens has an index of refraction of n₂ = 1.30.The lens has an index of refraction n₃ = 1.60.What is the minimum thickness (in nm) of the coating needed to prevent reflection of light with a wavelength of 500 nm?

A) 96.2
B) 120.2
C) 150.2
D) 187.8
E) 234.8