[单选题]
In the Compton effect, as the scau /d+1my ;deniwhyxai h4.d63pe: (wlttering angle ig;:j8k* nb h-hm(hktencreases, the frequency of the X-rays scattered at that k8(k- *thhjn gh ;m:beangle
A. increases.
B. decreases.
C. does not change.
D. varies randomly.