input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The virus HIV is produced and propagated in:   (A) Dendritic cells of the lymphnode germinal epithelium   (B) Circulating T4 lymphocytes   (C) B- lymphocytes   (D) Epithelial cells of the sex organs
output: ['(B) Circulating T4 lymphocytes <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Dendritic cells of the lymphnode germinal epithelium  (B) Circulating T4 lymphocytes  (C) B- lymphocytes  (D) Epithelial cells of the sex organs <> possible answers', '  The virus HIV is produced and propagated in: <> context']