A Surgical Procedure for a Repair of a Chondral Defect

A surgical procedure for a repair of a chondral defect of the medial femoral condyle involves the following: harvesting multiple plugs of intact articular cartilage along with some subchondral bone of the patient's own tissue from a donor site (typically a nonweight-bearing portion of the joint surface) and implanting the plugs (using a press fit) into the site forming a bone-to-bone graft.This procedure is called:

A) Autologous chondrocyte implantation.
B) Mosaicplasty.
C) Microfracture.
D) Débridement and lavage.