input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A tooth can be made to appear shorter by   (A) Positioning gingival height of contour gingivally   (B) Positioning gingival height of contour incisally   (C) Positioning mesial and distal line angles closer   (D) Positioning developmental depressions further apart
output: ['(B) Positioning gingival height of contour incisally <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Positioning gingival height of contour gingivally  (B) Positioning gingival height of contour incisally  (C) Positioning mesial and distal line angles closer  (D) Positioning developmental depressions further apart <> possible answers', '  A tooth can be made to appear shorter by <> context']