In a Double-Slit Interference Experiment You Are Asked to Use

In a double-slit interference experiment you are asked to use laser light of different wavelengths and determine the separation between adjacent maxima.You observe that this separation is greatest when you illuminate the double slit with

A) blue light.
B) green light.
C) yellow light.
D) red light.
E) The separation is the same for all wavelengths.