Answer:
1,3,4
Explanation:
1. Wheezing: This is a common symptom of asthma becauseof the narrowed airways causing rough airflow when breathing, making a high-pitched whistling sound.
3. Bronchospasm: Asthma involves bronchospasm, which is the sudden contraction of the muscles surrounding the airways, leading to their narrowing and difficulty in breathing.
4. Bronchial edema: Asthma can cause inflammation and swelling of the bronchial tubes, leading to decreased airflow and breathing difficulties.