When should the referee lower their arm after signaling an indirect free kick?

The proper protocol for a referee signaling an indirect free kick involves the referee initially raising their arm to indicate that an indirect free kick has been awarded. The arm should remain raised until the indirect free kick has been properly executed, which can occur in different scenarios.

Lowering the arm after the kick is taken indicates that the referee acknowledges the initiation of play. If the ball is touched (subsequently played) by a player, this action also signifies that the play has begun, which is another appropriate moment to lower the arm. Additionally, if the attacking team creates a clear opportunity, it may also signify that the indirect free kick has been effectively executed, thus enabling the referee to lower their arm.

In this context, all these scenarios reflect valid reasons for the referee to lower their arm, demonstrating a comprehensive understanding of when to signify that the indirect free kick has been legitimately taken and the game is back in play. This combination of circumstances justifies the selection of an answer that encompasses all the possibilities.