Explanation

A is correct because Nitrogen (N), Phosphorus (P), and Potassium (K) are the primary macronutrients essential for plant growth. B is incorrect because Carbon (C) is usually considered a major component of organic matter rather than one of the three core elements listed in this context. C is incorrect because it lists N and K but omits another key element or has an incomplete list structure. D is incorrect because while Nitrogen and Phosphorus are vital, Sulfur (S) is not typically grouped with these three as the primary trio for basic healthy growth requirements.