[单选题]
For a diatomic quantuma(l5 w6*dmmk.ujhp+l94d b r x mechanical rotator, the energy difference bet9;h.w8zb mvl1q7 az9 h3wiy rtween adjacent enervam7t h9lz9r31wzqy w.hib8; gy levels
A. increases as L increases.
B. decreases as L increases.
C. is constant for all L.
D. varies randomly as L increases.
