What is the standard duration for injury time at the end of each half?

The standard duration for injury time at the end of each half is determined by the referee based on stoppages in play. This approach allows the referee to assess the actual number and nature of the stoppages that occurred during the half, such as injuries, player substitutions, or other interruptions. Consequently, injury time can vary from match to match or even within the same game, depending on how much time was lost to these circumstances.

This flexibility is crucial because it ensures that the game’s flow and fairness are maintained, allowing the teams to have an accurate representation of playing time. A fixed duration or no injury time at all would not account for the unique situations that might occur during a match, making option B the most appropriate response to this question.