The photomicrograph displays two blood vessels, P and Q. These two blood vessels belong to a network that carries blood throughout the body. Which row gives the correct identities for blood vessel P and blood vessel Q?
- Ablood vessel P carries blood into arterioles; blood vessel Q carries blood into arterioles
- Bblood vessel P carries blood into arterioles; blood vessel Q carries blood from venules
- Cblood vessel P carries blood from venules; blood vessel Q carries blood into arterioles
- Dblood vessel P carries blood from venules; blood vessel Q carries blood from venules