What Is the Angular Resolution of the Eye at a Wavelength

Multiple Choice

What is the angular resolution of the eye at a wavelength of 500 nm for a pupil diameter of 2.8 mm?

A) 1.8 $\times$ 10^-4 rad
B) 2.2 $\times$ 10^-4 rad
C) 8.9 $\times$ 10^-5 rad
D) 4.5 $\times$ 10^-5 rad
E) 3.3 $\times$ 10^-5 rad