In a Single-Slit Diffraction Experiment, the Width of the Slit

Multiple Choice

In a single-slit diffraction experiment, the width of the slit through which light passes is reduced. What happens to the central bright fringe?

A) It stays the same.
B) It becomes narrower.
C) It becomes wider.
D) We must know the wavelength of the light to answer.
E) We must know the distance from the slit to the screen to answer.