[单选题]
350 nm of light falls on a singleff5sxt20l x1/ zm cqdf124vwx slit of width 0.20 mm. What is the angular ):5g ny;xa g3rclia 5nwidth ocgan )5 ;3g5 rlaniyx:f the central diffraction peak?
A. $0.10^{\circ}$
B. $0.15^{\circ}$
C. $0.20^{\circ}$
D. $0.30^{\circ}$
