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 $500 \mathrm{~nm}$ for a pupil diameter of $2.8 \mathrm{~mm}$ ?

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