Which of the following statements provides the BEST guideline for lifting and lowering ladders?

A. When lowering a ladder, keep feet perpendicular to the ladder.
B. Keep knees straight and locked when lifting or lowering ladders.
C. Use the correct number of firefighters for the length and type of ladder to be lifted or lowered.
D. When lifting or lowering with a team, any member may start when ready, knowing the team will follow their lead.

C