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The main factors that lead to an asthma attack are:

A. swelling of the airways, increased mucus production, and bronchodilation.
B. swelling of the airways, increased mucus production, and bronchoconstriction.
C. swelling of the airways, decreased mucus production, and bronchoconstriction.
D. swelling of the airways and bronchoconstriction.


Sagot :

Final answer:

Asthma attacks are triggered by swelling of the airways, increased mucus production, and bronchoconstriction.


Explanation:

Asthma attacks are primarily caused by swelling of the airways, increased mucus production, and bronchoconstriction. These factors combine to narrow the air passages, leading to difficulty breathing and other symptoms characteristic of an asthma attack.


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