Correct: Frugal implies wise spending, while stingy suggests an unwillingness to spend even when appropriate. A & B: Incorrect because the emotional tone differs. D: The difference is mainly connotation, not formality. Concept: Semantic nuance.
Correct: Frugal implies wise spending, while stingy suggests an unwillingness to spend even when appropriate. A & B: Incorrect because the emotional tone differs. D: The difference is mainly connotation, not formality. Concept: Semantic nuance.
