​Possible risk factors for asthma include

A) ​high levels of physical fitness.
B) ​being European American.
C) ​living in a rural area.
D) ​being obese.

Risk Factors

Factors that raise the chances of contracting a disease or sustaining an injury.

Asthma

A chronic lung disease that inflames and narrows the airways, causing difficulty in breathing, wheezing, and coughing.

Physical Fitness

The state of being physically healthy and strong, achieved through regular exercise and a balanced diet.