What is the minimum and maximum time allocated for halftime?

The correct time allocation for halftime in NFHS football is indeed a minimum of 10 minutes and a maximum of 20 minutes. This standard is set to ensure that teams have adequate time to regroup, strategize, and address player needs while keeping the rhythm of the game intact. With a 10-minute minimum, teams can efficiently use this time to make necessary adjustments without unnecessary delay. The 20-minute maximum ensures that the halftime duration does not extend excessively, maintaining the flow of the game and ensuring that spectators' interest is sustained. This balance is key to both player rest and the overall pacing of the game. The other options do not align with these established guidelines, as they suggest either shorter or longer halftime breaks than what is permitted.