What type of hose is primarily used to combat fires, typically ranging from 50 to 100 feet in length?

The primary purpose of attack hose is to combat fires by delivering water or other extinguishing agents directly at the fire. Typically, attack hoses are designed for quick deployment and maneuverability, making them suitable for combating fires in various environments, from residential to commercial buildings. They often range in length from 50 to 100 feet, which allows firefighters to reach the fire while maintaining a manageable weight and usability.

In contrast, supply hoses are used to transport water from a source, such as a fire hydrant, to an engine or a water source and are generally larger in diameter. Drain hoses are specifically designed for drainage applications and do not serve a purpose in fire suppression. Service hoses are used in specific situations for maintenance tasks but are not intended for direct fire suppression. Therefore, attack hose is the correct choice for the question as it is the hose specifically designated for fighting fires.