Final answer:
The correct answer is b. Asthma exacerbation.
Step-by-step explanation:
Based on the patient's symptoms of trouble breathing, their use of an inhaler, and the information provided, it is likely that the woman is experiencing an asthma exacerbation. Asthma attacks can cause symptoms such as coughing, wheezing, shortness of breath, and tightness of the chest.
It's important to note that this is a hypothetical scenario and a proper medical evaluation would be necessary to determine an accurate diagnosis and course of treatment.