input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following is the diluting segment of kidney?   (A) PCT   (B) Collecting duct   (C) Ascending thick loop Henle   (D) Descending loop of Henle
output: ['(C) Ascending thick loop Henle <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) PCT  (B) Collecting duct  (C) Ascending thick loop Henle  (D) Descending loop of Henle <> possible answers', '  Which of the following is the diluting segment of kidney? <> context']