Analogy — Coal : Heat :: Wax : ? Choose the option that represents the principal output we typically associate with wax when used as a candle.

Introduction / Context:
“Coal : Heat” is a source–product relation under usual usage: burning coal is commonly associated with producing heat (and also light, but heat is the canonical association). The question asks for a similar association with wax in everyday practice, i.e., what we chiefly obtain when wax is used in a candle.

Given Data / Assumptions:

• Coal (source) → heat (principal output in domestic/industrial use).
• Wax in candle form → light (the expected, defining output).
• We prioritize the normal, defining association, not peripheral by-products.

Concept / Approach:
Identify the dominant effect that characterizes the second pair. While burning wax also releases heat, culturally and functionally the candle’s purpose is “light,” just as coal is commonly tied to “heat.” “Candle” is an object, “bee” is a biological source of some wax types; “energy” is too generic.

Step-by-Step Solution:

Verification / Alternative check:
Everyday language encodes these pairs: coal-for-heat, candles-for-light. Hence “wax : light” mirrors the same intuitive linkage.

Why Other Options Are Wrong:

• Energy — too general; does not mirror the specific, culturally salient output.
• Candle — instrument rather than output.
• Bee — biological origin of some waxes, not the produced effect.

Common Pitfalls:
Choosing a related object (candle) instead of the outcome (light). The prompt seeks the characteristic result.

Final Answer:
Light