OG11 一道语法题

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

请问为什么选C不选A呢？distinguish A from B哪里错了呢？谢谢指点。

根据以前NN们的说法：

distinguish between A and B  区分A和B （gmat中优先使用）

distinguish A from B 是A有别于B 是有别于；有...特点之意

二者的意思是不相同的