input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** True about conversion of monomer to polymer is   (A) Density changes from 1.19g/cm3 to 0.9 and volume shrinkage is 21%   (B) Density changes from 1.19g/cm3 to 0.9 and volume shrinkage is 7%   (C) Density changes from 0.9g/cm3 to 1.19 and volume shrinkage is 21%   (D) Density changes from 0.9g/cm3 to 1.19 and volume shrinkage is 7%
output: ['(C) Density changes from 0.9g/cm3 to 1.19 and volume shrinkage is 21% <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Density changes from 1.19g/cm3 to 0.9 and volume shrinkage is 21%  (B) Density changes from 1.19g/cm3 to 0.9 and volume shrinkage is 7%  (C) Density changes from 0.9g/cm3 to 1.19 and volume shrinkage is 21%  (D) Density changes from 0.9g/cm3 to 1.19 and volume shrinkage is 7% <> possible answers', '  True about conversion of monomer to polymer is <> context']