[单选题]
For a diatomic quantumt ev 8awc,cjp( zq 8*t:in0+ba mechanical rotator, the energy dif4cuo+qfpw h. wfit5b9lc x +hdugg -3/v3:m 2jference between adjacent energy leu+ 5 h9-3:t+mqgcc3/puwolf24jxbig vd.hwfvels
A. increases as L increases.
B. decreases as L increases.
C. is constant for all L.
D. varies randomly as L increases.