Step 1: Understanding the clues.
The clues given are:
- (i) Temperate
- (ii) Cool
- (iii) Tepid
- (iv) Sun
The common theme among these clues is related to temperature or warmth. Temperate, cool, and tepid all describe various levels of warmth, and the sun is a direct source of heat. Hence, the option related to warmth fits the clues best.
Step 2: Analyzing the options.
(A) Warm: This is the correct answer as it correlates directly with all the clues (temperate, cool, tepid, and sun).
(B) Wave: This is not related to temperature or warmth.
(C) Grassland: Though grasslands are warm, they are not directly related to the clues provided.
(D) Care: This is unrelated to the given clues about temperature.
(E) Moon: The moon does not fit with the concept of warmth.
Step 3: Conclusion.
The correct answer is (A) Warm, as all the clues indicate varying levels of warmth, which aligns best with this option.