A blitz attack is a(n):

A blitz attack is an offensive fire suppression tactic that involves the use of a master stream, which is a high-capacity water delivery system capable of applying large volumes of water onto a fire quickly. This method is often utilized in situations where firefighters need to quickly gain control of a fire that is rapidly spreading or is heavily involved upon arrival at the scene.

The master stream can be deployed from a variety of apparatus, including fire engines or aerial platforms, making it an effective tool for delivering significant amounts of water over a wide area to knock down the fire and create a safer environment for further firefighting operations and potential rescues.

In contrast, options that reference handlines may not provide the same volume of water as a master stream in a quick response situation, making them less effective for rapidly controlling large fires. The key characteristic of a blitz attack is the speed and volume of water delivered, which is best achieved through the use of a master stream.