'On' is related to its direct opposite 'Off' (binary antonyms). In the same way, 'Hot' is related to which direct opposite?

Introduction / Context:
The analogy is antonymic opposition. “On : Off” are direct opposites. The direct opposite of “Hot” is “Cold.” We select the option that preserves the antonym relation. If “Cold” is not listed among core options A–D, the correct choice is “None of these.”

Given Data / Assumptions:
“Hot” ↔ “Cold” are canonical opposites in temperature description.

Concept / Approach:
Verify whether the explicit antonym appears in the provided choices. If not present, select “None of these” as per exam convention.

Step-by-Step Solution:

Verification / Alternative check:
“Water”, “Switch”, “Tap” are unrelated nouns, not antonyms of “Hot”.

Why Other Options Are Wrong:
They do not express the antonymic relation required by the stem.

Common Pitfalls:
Picking a loosely associated word instead of the exact opposite.

Final Answer:
None of these