Final answer:
The question is about roller derby rules concerning False Start warnings, specifically improper alignment of Pivots at the start of a jam.
Step-by-step explanation:
The question refers to a False Start warning in a sport, which is likely related to roller derby, given the mention of Pivots, Blockers, and the Pivot Line. In roller derby, a False Start occurs when a skater is not properly aligned at the start of a jam. For example, a White Pivot lining up completely in front of the Pivot Line, or a Red Pivot lining up behind White Blockers with a skate on the Pivot Line would lead to a False Start warning. It is important for players to understand their positions and the rules associated with starting a jam to avoid penalties and maintain the flow of the game.