Some synovial joints contain special crescent-shaped pads that provide additional shock absorption, and provide for a better fit between the articulating surfaces of the bones. these special pads are called ) menisci
b) labra
c) fat pads
d) bursae
e) tendon sheaths

a) menisci

Explanation:

The Synovial joints contain special cresent-shaped pads which are known as Menisci. A menisci is a crescent-shaped pads (which partly divides synovial joints) that provide additional shock absorption, and provide for a better fit between the articulating surfaces of the bones. In humans, the can be found in the knees,elbows,wrists etc.

The menisci provide structural firmness to where they are being found in the body (i.e  knees,elbows,wrists) when it undergoes tension and torsion. They also act to disperse the weight of the body and reduce friction during movement.