Which of the following is true about a flagrant foul?

A flagrant foul is characterized by an act that is excessively violent or aggressive and poses a significant risk of injury to other players. Because of its severity, such a foul often results in more serious consequences, which can include not just penalties but also potential ejections from the game. The nature of a flagrant foul demands strict enforcement to protect the safety of all players involved. This is why the response regarding it potentially leading to serious injury or severe penalties is accurate.

Other options do not align with the definition and consequences of a flagrant foul. For instance, flagrant fouls are not considered minor and do not only occur in overtime; their enforcement applies at any point in the game. Additionally, unlike less severe fouls, flagrant fouls typically necessitate that the player who committed the foul leaves the game, underscoring the serious nature of the violation.