What must a Jammer do if they receive a penalty during a Jam?

In roller derby, when a Jammer receives a penalty, they are required to go to the Penalty Box immediately. This is crucial for maintaining the flow of the game and ensuring fairness, as the Penalty Box serves to temporarily remove players who commit infractions. By going to the Penalty Box, the Jammer is not allowed to participate in the Jam until they have served their penalty, which usually lasts for 30 seconds or until the end of the Jam. This rule helps to discourage reckless play and promotes sportsmanship among competitors, ensuring that all participants adhere to the game's rules.

The other answers do not align with the established rules of roller derby regarding penalties; for example, skipping a Jam or waiting until its conclusion would disrupt gameplay and diminish the strategic element of the sport. Notifying the referee is part of the communication flow, but it does not replace the immediate responsibility of serving the penalty, which is why going to the Penalty Box is the correct action for the Jammer.