Analogy — Flow : River :: Stagnant : ? Choose the water body/state that typically corresponds to “stagnant,” as “flow” corresponds to “river.”

Introduction / Context:
The word “flow” is characteristically associated with rivers, streams, and moving water. The analogy asks for the counterpart of “stagnant,” which describes water that does not move. We need the natural pairing where stillness is expected.

Given Data / Assumptions:

• Flow → river (moving water).
• Stagnant → pool (typically still water).
• Canals and streams are engineered or natural channels with flow; “river” again implies movement.

Concept / Approach:
Maintain the property–example structure: property (flow) → exemplar (river) and property (stagnant) → exemplar (pool/pond). Pick the option that canonically embodies still water.

Step-by-Step Solution:

Verification / Alternative check:
Dictionaries and hydrology basics associate “stagnant” with pools/ponds where water circulation is minimal.

Why Other Options Are Wrong:

• Canal — designed for flow; not naturally stagnant.
• Stream — flowing watercourse.
• River — already mapped with “flow,” not with stagnation.

Common Pitfalls:
Choosing a watercourse term that implies motion rather than stillness.

Final Answer:
Pool