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