[单选题]
In the Compton effect, as the scattering angle increases, the frequeng(wfksg je8 4f,7gp14jb fza7 cy ofq.v:hfeq-j- 3w-z tzi the X-rays scattereh-tziq -e3-j wqv:.fzd at that angle
A. increases.
B. decreases.
C. does not change.
D. varies randomly.