which kind of exercise helps your heart work more efficiently?\na. aerobic exercise\nb. flexibility…

which kind of exercise helps your heart work more efficiently?\na. aerobic exercise\nb. flexibility training\nc. anaerobic exercise\nd. strength training
Answer
Brief Explanations:
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