A Beam of Light of Wavelength $630 \mathrm {~nm}$ Is Incident on a Slit That Is

A beam of light of wavelength $630 \mathrm {~nm}$ is incident on a slit that is $0.400 \mathrm {~mm}$ wide. If the distance between the slit and the screen is $1.80 \mathrm {~m}$ , what is the width on the screen of the central bright fringe?

A) $5.67 \mathrm {~mm}$
B) $3.54 \mathrm {~mm}$
C) $6.94 \mathrm {~mm}$
D) $1.94 \mathrm {~mm}$
E) $2.94 \mathrm {~mm}$