The blood vessels labeled “A” to the right are carrying blood from body cells to the right atrium of the heart. What would be true of this blood?

The last option is correct

TRUST ME

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT

It is low in oxygen and high in carbon dioxide.

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

the answer to your question is:

c. complementary base-pairing