The correct answer is emphysema.
This respiratory disease occurs when alveoli get enlarged, and thus cause chronic lung inflammation and later on lung fibrosis as well. This person then finds it extremely hard to breathe properly, as airways tend to collapse during expiration.
Definitely C) she did not have enough information to prove her theory to be right.
I can't really give you a percentage sorry. My answer is Possible, yes but probable, no.
