​The connection between the immune system and asthma may occur through

A) ​the stress from its treatment.
B) ​the process of inflammation.
C) ​triggers, like smoke or dust.
D) ​a person's ethnic background.

Asthma is a chronic respiratory disease involving the immune system's response to certain triggers, causing inflammation in the airways. This inflammation can lead to difficulty breathing, coughing, and wheezing. Therefore, the connection between the immune system and asthma occurs through the process of inflammation.