[单选题]
The probability of finding an elect,l mv /dj arv/r iro;h+x/r05trpzefi 4 +bz:u p,;+xj1l/ hpjhon in a hydrogen atom is directly proportional toex zj:;,fbujil/ 1+h pp pz+4h its
A. energy.
B. momentum.
C. wave function.
D. square of the wave function.
