In a double-slit experiment using red light, a fringe pattern is observed on a screen at a fixed distance from the double slits. How would the fringe pattern change if...

Choose the correct completion:

a) The distance between the double slits and the screen is increased.
b) The distance between the double slits and the screen is decreased.
c) The wavelength of the red light is increased.
d) The intensity of the red light is decreased.