Structure L and I are the superior and inferior vena cava. They bring de-oxygenated blood from the body into the right atria.
C because I had the same question and my teacher said it was c
Answer:The bones of the skeletal system serve to protect the body's organs, support the weight of the body, and give the body shape. The muscles of the muscular system attach to these bones, pulling on them to allow for movement of the body.
Explanation: Hope it helps!