[单选题]
The photograph below shows l1i -s ouzjnk;/cxj3*7mf r4 uzungs that havhr3v x v60dfb;e undergone excessive breakdown of alveoli by36b hr; vx0fdv protein-digesting enzymes (part on the left) compared to normal lung tissue (on the right).
Which of the following are not symptoms of the lung condition pictured above?
A. Coughing up blood
B. Fatigue
C. Shortness of breath
D. Persistent cough
