[单选题]
In a single slit diffraction experiment, if the widt,ty, 7c-g k+za7quzwt5ej b +eh of the slit increases0 ka7ysq-c3yzr gnd5 9, what happens to the width of the central max9zy-rqcgy705n3as k dimum on a screen?
A. It increases.
B. It decreases.
C. It remains the same.
D. There is not enough information to determine.