What is the primary job of the offense in football?

The primary job of the offense in football is to move the ball down the field. This involves strategically advancing the ball towards the opposing team's end zone in order to score points, typically through methods such as passing or running plays. The offense is responsible for making decisions on how to progress with the ball, coordinating plays that involve teamwork between various positions such as the quarterback, running backs, and receivers.

Although other aspects of the game, such as clock management or defending the goal, are important, they fall under different roles or situations within the game. The offense's main focus is on scoring points by successfully advancing the ball, making option B the correct and fundamental role of the offense in football.