A nurse is collecting data from a school-age child who has hypothyroidism. Which of the following findings should the nurse expect?

A. Lethargy is a common symptom of hypothyroidism due to decreased metabolism. B. Hirsutism is not associated with hypothyroidism; it is more commonly seen in conditions like polycystic ovary syndrome (PCOS). C. Tachycardia is typically associated with hyperthyroidism, not hypothyroidism. D. Diarrhea is also associated with hyperthyroidism, while hypothyroidism usually causes constipation.