How wide is the centered line used for the try?

The correct answer is that the centered line used for the try is 4 inches wide. This specification is important in ensuring consistency and clarity on the field.

A 4-inch centered line provides a clear and visible marker for both the players and officials during the try attempt following a touchdown. The width is designed to be wide enough to be easily seen while not being overly large, which helps maintain the aesthetics of the field and the game. This measurement is part of the standardized field markings that all teams must adhere to, ensuring that the game is played fairly and uniformly across all levels.

The other options represent widths that are either too narrow or too wide for this specific purpose, which could lead to confusion during the try attempts, affecting both gameplay and the visual clarity of the field.