input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Average Diameter of Apical foramen in an 18-25 years old adult is   (A) 400 micrometer   (B) 502 micrometer   (C) 681 micrometer   (D) 602 micrometer
output: ['(B) 502 micrometer <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 400 micrometer  (B) 502 micrometer  (C) 681 micrometer  (D) 602 micrometer <> possible answers', '  Average Diameter of Apical foramen in an 18-25 years old adult is <> context']