input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The only immunoglobulin found as a dimer has what primary function?   (A) Protect against invasive helminth infection   (B) Protect against viral infections   (C) Inhibiting bacterial adherance and colonization of mucous membranes   (D) Provides the most specific recognition to circulating antigens in the bloodstream
output: ['(C) Inhibiting bacterial adherance and colonization of mucous membranes <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Protect against invasive helminth infection  (B) Protect against viral infections  (C) Inhibiting bacterial adherance and colonization of mucous membranes  (D) Provides the most specific recognition to circulating antigens in the bloodstream <> possible answers', '  The only immunoglobulin found as a dimer has what primary function? <> context']