In a Young's Double Slit Experiment, Green Light Is Incident

Multiple Choice

In a Young's double slit experiment, green light is incident on the two slits. The interference pattern is observed on a screen. Which one of the following changes would cause the fringes to be more closely spaced?

A) Reduce the slit separation distance.
B) Use red light instead of green light.
C) Use blue light instead of green light.
D) Move the screen farther away from the slits.
E) Move the light source farther away from the slits.