Identify the Fractured Bone in this Xray?

Identify the Fractured Bone in this Xray?A. Femur
B. Radius
C.tibia
D.patella


patela-The patella, also known as the kneecap, is a thick, circular-triangular bone which articulates with the femur (thigh bone) and covers and protects the anterior articular surface of the knee joint.