[单选题]
350 nm of light falls on a y:z4cm.4 g,vwu:edw1j l8 nr esing) pq:a7wi (3kdkr libl,n t*x,le slit of width 0.20 mm. What is the angular width of the centralwia*kl kp37xrntbd i,(,l q): diffraction peak?
A. $0.10^{\circ}$
B. $0.15^{\circ}$
C. $0.20^{\circ}$
D. $0.30^{\circ}$
