Two Nearly Equal Wavelengths of Light Are Incident on an N

Multiple Choice

Two nearly equal wavelengths of light are incident on an N slit grating.The two wavelengths are not resolvable.When N is increased they become resolvable.This is because:

A) more light gets through the grating
B) the lines get more intense
C) the entire pattern spreads out
D) there are more orders present
E) the lines become more narrow