[单选题]
Light of wavelength 610 nm is incide l;nt2-duu0zq tl7k4xnt1-)pvgzwrq x1 fq .8t*iysv4q on a slit 0.20 mm wide and the diffraction pattern is produced on a screen t8-*1vwf) t4.xs pgqyqiv1rqzhat is 1.5 m from the slit. What is the width of the central maximum?
A. $0.34 \; cm$
B. $0.68 \; cm$
C. $0.92 \; cm$
D. $1.2 \; cm$