[单选题]
350 nm of light falls on a single slit of width 0+ :vnlgszyxk+f.q7zul k3pe7u n6m(b* xf+. o.20 mm. What is thc jtd6s v*2a2 3m2f158ittpfyrp a*ple angular width of the central diffrac5ysc*j2la p 28vt13f m* 2 ftri6ptdpation peak?
A. $0.10^{\circ}$
B. $0.15^{\circ}$
C. $0.20^{\circ}$
D. $0.30^{\circ}$
