)The chart below shows four friends' target heart rate zones. During their last spin class, each person averaged 172 beats per minute. Based on this information, who worked at the highest intensity level?

i think itś the 2nd one because its not anything major like having sex. its putting limits to your self if that makes sense.

hope that and feel free to ask me more questions : )

brainliest? ?

the aorta is the large artery leaving the heart branches into smaller arteries, which eventually branch into capillaries.the arteries carry oxygen and nutrients away from your heart, to your body's tissues. the capillaries are small, thin blood vessels that connect the arteries and the veins. the statement that arteries carry oxygen-rich blood to capillaries is true. veins on the other hand are blood vessels that take oxygen-poor blood back to the heart.

a1 = unhealthy

a2= healthy

a3= healthy

i think the answer is c

hope this