[单选题]
A diffraction grating has 5000 lines per cm. The yum0a*/i r+ 0kl 5ayztm)e(lxof)*1466 xl cchf b prwangle between the central maximum and the fo)4 x*r1wf6b) cfo6l(ehclp mxurth order maximum is $47.2^{\circ}$. What is the wavelength of the light?
A. $138 \; nm$
B. $183 \; nm$
C. $367 \; nm$
D. $637 \; nm$
