[单选题]
For a diatomic quantum e9x4 2krdbf dpy* dimg*;- v:jmechanical rotator, the energy difference between adjac.noovgl 10+a 5yscfc0qv, 7 taent energyt0 yo novs clg+a5a.,v1c0qf7 levels
A. increases as L increases.
B. decreases as L increases.
C. is constant for all L.
D. varies randomly as L increases.