Is it true that Holy Orders is the sacrament through which the mission entrusted by Christ to the apostles continues to be exercised in the Church until the end of time?

Yes, it is true that Holy Orders is the sacrament through which the mission entrusted by Christ to the apostles continues to be exercised in the Church. This sacrament confers a sacred character and a specific role within the Church's hierarchy, enabling ordained ministers to serve the community through teaching, sanctifying, and governing. The apostolic mission is thus perpetuated through the ongoing ministry of bishops, priests, and deacons.