The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A glass factory worker presented with complaints of numbness in hands and feet, generalized weakness and constipation. Radiograph showed linear lines on metaphyses of knee and wrist joints. How will you diagnose this patient?   (A) Serum mercury levels   (B) Vitamin D levels   (C) RBCcholinesterase levels   (D) Amino levulinic acid levels in urine
['(D) Amino levulinic acid levels in urine <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Serum mercury levels \n (B) Vitamin D levels \n (C) RBCcholinesterase levels \n (D) Amino levulinic acid levels in urine <> possible answers', '  A glass factory worker presented with complaints of numbness in hands and feet, generalized weakness and constipation. Radiograph showed linear lines on metaphyses of knee and wrist joints. How will you diagnose this patient? <> context@']