'Boat' is related to 'Oar' as the manual driving mechanism. In the same way, 'Bicycle' is related to which part that provides manual drive?

Introduction / Context:
The analogy captures the component used to manually propel or drive the vehicle. An oar manually propels a boat. For a bicycle, the part that the rider pushes to drive the chain and wheel is the pedal.

Given Data / Assumptions:

• Oar → manual propulsion for boats.
• Bicycle → manual propulsion via pedal and crank system.

Concept / Approach:
We match “vehicle : manual driving component.” The pedal on a bicycle is the direct analog to the oar on a boat—both convert human effort to motion.

Step-by-Step Solution:

Verification / Alternative check:
Wheels and seats are structural/ride components; handles steer; roads are external surfaces and not vehicle parts.

Why Other Options Are Wrong:

• Wheel: Enables rolling but is not the manually operated driver.
• Seat: For support, not propulsion.
• Handle: Steering component.
• Road: Not a component of the bicycle.

Common Pitfalls:
Picking a critical part (wheel) that is necessary but not the manual driver in the same sense as the oar is for the boat.

Final Answer:
Pedal