Question

Asthma is caused due to ?
a)infection of trachea
b) infection of lungs
c) bleeding into pleural cavity
d) spasm i n branchial muscles
Please chose one correct answer and give reason also
​

Answer 1

Answer:

b) infection of lungs .

Answer 2

$\huge \purple {Answer:-}$

d) spasm in bronchial muscles.

$\huge \purple {Explanation:-}$

Asthma is caused due to inflammation of lungs and spasm in bronchial muscles.