The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A youthful feminine smile have all the characteristics except?   (A) Golden proportion is followed   (B) Closure of incisor embrasure   (C) Rounding of incisal line angles   (D) Softened facial line angles
['(B) Closure of incisor embrasure <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Golden proportion is followed \n (B) Closure of incisor embrasure \n (C) Rounding of incisal line angles \n (D) Softened facial line angles <> possible answers', '  A youthful feminine smile have all the characteristics except? <> context@']