The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Countercurrent mechanism is not seen in:   (A) Kidney   (B) Testes   (C) Eye   (D) Intestine
['(C) Eye <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Kidney \n (B) Testes \n (C) Eye \n (D) Intestine <> possible answers', '  Countercurrent mechanism is not seen in: <> context@']