input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A properly designed rest on lingual surface of a canine is preferred to a rest on incisal surface because:   (A) Less Leverage is exerted against the tooth by Lingual rest   (B) Enamel is thicker on lingual surface   (C) Visibility and access is better on lingual surface   (D) The cingulum of canine produces a naturalsurface for recess
output: ['(A) Less Leverage is exerted against the tooth by Lingual rest <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Less Leverage is exerted against the tooth by Lingual rest  (B) Enamel is thicker on lingual surface  (C) Visibility and access is better on lingual surface  (D) The cingulum of canine produces a naturalsurface for recess <> possible answers', '  A properly designed rest on lingual surface of a canine is preferred to a rest on incisal surface because: <> context']