In which of the following, all three are macronutrients?

From the given options, Option B (Nitrogen, Potassium, Phosphorus) contains the three primary macronutrients. All other options have only micronutrients. The primary macronutrients are nitrogen (N), phosphorus (P), and potassium (K). The three secondary macronutrients are calcium (Ca), sulfur (S), and magnesium (Mg). Micronutrients/trace minerals include boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo), and nickel (Ni). In relatively large amounts, the soil supplies nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur; these are often called the macronutrients. In relatively small amounts, the soil supplies iron, manganese, boron, molybdenum, copper, zinc, chlorine, and cobalt; these are called micronutrients. Nutrients must be available not only in sufficient amounts but also in appropriate ratios. So, the correct answer is option B.