[单选题]
For a diatomic quantum mecq(uw6u g j741 fhrc/6ptfr9l fh r9y5*bt76nplxrtq2 janical vibrator, the energy difference between adjacent quantum statesbp 5y2jxr9t7ltn 6q r*
A. increases as v increases.
B. decreases as v increases.
C. is constant for all values of v.
D. varies randomly as v increases.