What components make up Battle Dress for firefighters?

The correct choice is significant because it identifies essential components that specifically address the needs of firefighters when dealing with extreme heat and possible flashover situations. An anti-flash hood, anti-flash jersey, and anti-flash gloves are designed to provide thermal protection by utilizing materials that resist flames and high temperatures, which are crucial for safeguarding firefighters during operations in hazardous environments.

While the other options mention various protective equipment commonly used by firefighters, they do not emphasize the specialized gear that is pivotal for situations involving immediate fire hazards. For instance, helmets and protective coveralls play important roles but are not as tailored for flash protection as the gear specified in the correct answer. This nuanced understanding of protective gear is crucial for maintaining safety during firefighting operations.