Final answer:
The correct answer is option C) Maximum static friction is larger.
Step-by-step explanation:
The magnitude of the maximum static friction force is usually greater than the kinetic friction force on a crate. Static friction occurs when two surfaces are stationary relative to each other, while kinetic friction occurs when two surfaces are in motion relative to each other.
For example, if you try to push a crate with a force parallel to the floor, the force you exert to overcome the static friction and start the motion of the crate will be greater than the force needed to keep the crate moving at a constant speed, overcoming the kinetic friction.
In summary, the magnitude of the maximum static friction force is generally larger than the kinetic friction force on a crate.