A defensive charged conference is held at the pitching mound with the head coach and all the infielders. The conference is considered to be concluded when:

• A. One of the players initially starts to return to his position.
• B. The coach leaves the area of the pitching mound.
• C. The coach crosses the foul line.
• D. The coach provides instructions to the outfield.

Answer: (C)

Defensive charged conferences happen when the defense gathers at the pitcher's mound to talk with the pitcher. The moment that meeting ends is defined by the coach stepping across the foul line, which marks the boundary of the conference area. When the coach crosses that line, the meeting is considered concluded and players can return to their positions, with play resuming.

So, the conference ends not simply because players start returning or because the coach leaves the mound area, but specifically when the coach crosses the foul line signaling the end of the mound meeting.