Question

which kind of exercise helps your heart work more efficiently?
a. aerobic exercise
b. flexibility training
c. anaerobic exercise
d. strength training

Explanation:

Aerobic exercise, like running or cycling, increases heart - rate and strengthens the heart muscle over time, allowing it to pump blood more efficiently. Other types of exercises have different primary benefits. Flexibility training improves range - of - motion, anaerobic exercise builds short - term power, and strength training focuses on muscle mass and strength.

Answer:

A. Aerobic exercise