Joints and ligaments a
are found in the brain.
b
make red blood cells.
с
let bones move.

C. let bones move.

Explanation: Because since joints and ligaments connect bones together in order to form a joint. The joints and ligaments both allow both the bones and tissues around the bones or just tissues to move and both are together to formed a joint which was said from above.

delegated (sometimes called enumerated or expressed) powers are specifically granted to the federal government in article i, section 8 of the constitution. this includes the power to coin money, to regulate commerce, to declare war, to raise and maintain armed forces, and to establish a post office.