[单选题]
What is the Brewster's angle for light trm9b i5.rf5rc o9it1gu aveling in vacuum and reflecting omn 4 )bzmrwo48ff a piece of go8m4mr4)z nwb lass of index of refraction 1.48?
A. $31.9^{\circ}$
B. $39.8^{\circ}$
C. $45.3^{\circ}$
D. $56.0^{\circ}$
