Final answer:
Chronic bronchitis, a component of COPD, leads to an increase in mucus production, resulting in obstructed airflow and aggravated coughing. The correct option is A. Increase.
Step-by-step explanation:
In chronic bronchitis, there is an increase in mucus production. Chronic bronchitis is a type of Chronic Obstructive Pulmonary Disease (COPD) and is characterized by long-term inflammation of the bronchial tubes.
This inflammation leads to a significant increase in the production of mucus, which can obstruct airflow and exacerbate coughing.
Chronic bronchitis can be caused by smoking, and cessation of smoking can slow down the progression of the disease. Treatments often focus on reducing symptoms and improving lung function, as there is no cure except, in severe cases, lung transplantation.
In chronic bronchitis, there is an increase in mucus production. The inflammation of the bronchial tubes in the chest leads to the build-up of mucus, causing symptoms like a cough that produces phlegm and wheezing. This excessive production of mucus further narrows the air passages, making it more difficult for air to flow.
The correct option is A. Increase.