distinguish between A and B和 distinguish A from B的区别？？

希望有NN帮我分析一下两者有什么区别么？比如
15. In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes mood swings. which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.

(A)    mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis
(B)    mood swings, perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis ,
(C)    between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis
(D)    between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis
(E)    genuine manic-depressive psychosis and mood swings, which may be violent without being grounded in mental disease

ETS Exaplaination
The best choice is C because it uses the idiomatically correct expression distinguishes between x and y and because it provides a structure in which the relative clause beginning which may be violent clearly modifies mood swings. The other choices use distinguishes in unidiomatic constructions. 为什么distinguish between ~and~ 更地道 ？