Why not COPD? as the pattern is irreversible

A 32yo female has a hx of SOB and fever. Pre-broncho-dilation test was done and it was 2/3.5
and post-bronchodilator was 3/3.7. The pt was dx of eczema and TB. What is the possible dx?

b. Asthma
c. Pneumonia
d. Bronchiectasis

Ans. The key is B. Asthma. This is probably wrong key. Correct key is D. Bronchiectasis.