Final answer:
b) Second-class lever. The type of lever described is a second-class lever, where the resistance is in the middle and the fulcrum and effort are on the other sides.
Step-by-step explanation:
The type of lever described in the question, with the resistance in the middle and the fulcrum and effort on the other sides, is a second-class lever.
In a second-class lever, the load or resistance is located between the effort and the fulcrum. This lever allows a small applied force to move a larger resistance force. Examples of second-class levers include wheelbarrows, nutcrackers, and bottle openers.
In a wheelbarrow, the load or resistance is the weight that needs to be lifted, the fulcrum is the wheel's axle, and the effort is applied through the handles. When the effort is exerted further away from the fulcrum, it can exert a greater force on the resistance, allowing for easier lifting of heavy loads.