A child presents with perioral rash and pigmentation of palmar area. What is the cause?: (A) Selenium deficiency, (B) Manganese deficiency, (C) Copper deficiency, (D) Zinc deficiency
Answer is D. Option A: Selenium deficiency shows cardiomyopathy.
Option B: Manganese deficiency presents with hypercholesterolemia and weight loss.
Option C: Copper deficiency leads to neurological manifestations.