The anatomical examples of each class of levers and giving reasons for their resemblance to the class. Introduction: A lever's purpose is to increase a motion's speed, distance, or force, either by applying more force to a resistant item than was applied to the lever itself or by moving the object more quickly or further than the effort arm is moving. Both benefits cannot be granted by a single lever. Force and speed or distance are in opposition to one another; as one grows, the other decreases.

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Chapter 9.2, Problem 8BYGO

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The anatomical examples of each class of levers and giving reasons for their resemblance to the class.

Introduction:

A lever's purpose is to increase a motion's speed, distance, or force, either by applying more force to a resistant item than was applied to the lever itself or by moving the object more quickly or further than the effort arm is moving. Both benefits cannot be granted by a single lever. Force and speed or distance are in opposition to one another; as one grows, the other decreases.

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can you help? I think its B but not sure