What do the initials "KC" stand for in the context of senior barristers?

The initials "KC" stand for "King's Counsel." This designation is awarded to senior barristers in England and Wales who have demonstrated excellence in advocacy and significant contributions to the legal profession. Being appointed as a King's Counsel signifies that the barrister has achieved a high level of distinction and is recognized for their expertise and experience in courtroom advocacy.

The title is held during the reign of a king, and when there is a queen, it is referred to as "QC," or "Queen's Counsel." The distinction is a traditional honor, reflecting the barrister’s capability to handle complex cases and represent clients at the highest legal levels.

Other options, while they may sound plausible in the context of legal terminology, do not represent recognized titles or honors within the legal system in the same way. "King's Commissioner," "Chief Counselor," and "King's Court" do not correspond to formal titles given to experienced barristers, thus reinforcing why "KC" unequivocally refers to "King's Counsel."