{
  "inputs": {
    "question": "A 1-year-old Caucasian male is on pancreatic enzyme replacement therapy (PERT) to maintain a healthy body mass index. Sweat chloride test is 68 mmol/L (< 29 mmol/L = normal). The patient has a relative who was also on PERT but passed away in his mid-20s due to respiratory failure, and was unable to have children. Which of the following would be most improved by PERT?",
    "choices": {"A": "Bone mineral density", "B": "Nasal polyps", "C": "Hypoglycemia", "D": "A lack of respiratory infections"}
  },
  "expected": {
    "default": {"answer": "A", "explanation": "PERT improves fat absorption, which directly enhances calcium and vitamin D uptake, thereby increasing bone mineral density."},
    "answer-only": {"answer": "A"}
  }
}