What is the total running time of the four periods in a game?

In an NFHS football game, the total running time of the four periods is structured to be 48 minutes, which is indeed divided equally. This means each of the four quarters lasts for 12 minutes. The structure aims to ensure that the game maintains a consistent flow and pace while providing ample opportunities for both teams to compete effectively.

The specific duration of 48 minutes is standard in high school football, ensuring a game length that is shorter than that of college or professional football, which helps maintain player safety and competitive balance. This division also allows for strategic play, as teams must effectively manage the clock and pacing of the game within the allotted time.

The other options do not align with the NFHS rules for the total running time of a football game.