The body is made up of systems that work together so that an organism can survive and grow. The muscular system contains muscles that move the body. How does the circulatory system help the muscles to function?
A.
by transporting oxygen that can be used by the muscles to produce energy
B.
by transporting carbon dioxide that can be used by the muscles to produce energy
C.
by transporting carbon dioxide that can be used by the muscles for sensing information
D.
by transporting oxygen that can be used by the muscles for sensing information