By definition, cystic fibrosis is a hereditary disorder that affects the exocrine glands. This is when an abnormally thick mucus blocks pancreatic ducts, intestines, and bronchi, and most of the time, leads to respiratory infection. Based on the given options above, the option that is least <span>likely to be a health problem for someone with cystic fibrosis is obesity. The answer is option D.</span>
