Hi, can you please answer these questions?

Which of the following triggers for asthma is most commonly found in the home?

A.] Dust mites
B.] Flower pollen
C.] Sawdust
D.] Cold air


Which of the following cannot be prevented by healthy living activities?
A.] Influenza
B.] Iron-deficiency anemia
C.] Sickle cell anemia
D.] Chronic heart disease


I kindly ask that you please answer these last 2 questions, ty