Final answer:
When raising a ladder in firefighting operations, with enough personnel, the beam raise method is typically employed rather than a specific focus on angle degrees, ensuring control and safety.
Step-by-step explanation:
The question pertains to the optimal method for firefighters to raise a ladder while dealing with a fire emergency. The correct answer is option b: a beam raise is normally used when enough personnel are available to raise the ladder. This method allows firefighters to have better control over the ladder and ensure it is securely placed against the building. The angle at which the ladder is raised should allow a firefighter to climb comfortably and safely, typically around a 75-degree angle, ensuring that the force of gravity helps to hold it in place.