In One Particular Case,the Limiting Angle of Resolution for an Eye

Multiple Choice

In one particular case,the limiting angle of resolution for an eye is 1.4 × 10^-4 rad.What is the minimum separation between two point sources of light that the eye can distinguish if they are at a distance of 40 m from the observer?

A) 2.8 mm
B) 5.6 mm
C) 1.4 mm
D) 8.4 mm
E) 4.7 mm