Analogy – medium and vehicle: “Sea” is related to “Ship” in the same way that “Road” is related to which of the following?

Introduction / Context:
This analogy focuses on the relationship between a medium (the environment of movement) and a vehicle that uses that medium. A ship travels on the sea; what typically travels on a road?

Given Data / Assumptions:

• Sea is the transport medium for ships.
• Road is the terrestrial transport medium for road vehicles.
• We need a specific vehicle analogous to “ship.”

Concept / Approach:
Preserve category: “medium : vehicle.” Just as “ship” is a vehicle using sea as medium, “bus” is a vehicle using road as medium. Alternatives like “traffic,” “journey,” or “travellers” are aggregates or abstractions, not a single vehicle term.

Step-by-Step Solution:

Verification / Alternative check:
Any specific road vehicle (car, bus, truck) would complete the relation. Among the options, “Bus” is the only concrete road vehicle, confirming the choice.

Why Other Options Are Wrong:

• Traffic: Collective term, not a single vehicle.
• Travellers: People, not vehicles.
• Journey: Abstract noun for the act of travel, not a vehicle.

Common Pitfalls:
Picking broad or abstract nouns instead of the required concrete vehicle term to mirror “ship.”

Final Answer:
Bus