Following all are macronutrients except

Options

A. N
B. P
C. S
D. Mn

Answer

To solve the question "Following all are macronutrients except," we need to identify which of the listed nutrients is not classified as a macronutrient.

### Step-by-Step Solution:

1. **Understand Macronutrients and Micronutrients**:
- Macronutrients are essential nutrients that plants require in large amounts. Examples include nitrogen, phosphorus, potassium, magnesium, calcium, and sulfur.
- Micronutrients are essential nutrients needed in smaller quantities, such as zinc, iron, boron, manganese, copper, and molybdenum.

2. **List the Given Nutrients**:
- The nutrients provided in the question are: Nitrogen, Phosphorus, Sulfur, and Magnesium.

3. **Classify Each Nutrient**:
- **Nitrogen**: This is a macronutrient.
- **Phosphorus**: This is also a macronutrient.
- **Sulfur**: This is a macronutrient as well.
- **Magnesium**: This is also classified as a macronutrient.

4. **Conclusion**:
- Since all the listed nutrients (Nitrogen, Phosphorus, Sulfur, and Magnesium) are macronutrients, we need to identify which one does not belong to this category. However, based on the information provided, it appears that there is a misunderstanding in the question as all are macronutrients.

5. **Final Answer**:
- Since the question asks for an exception and all listed nutrients are macronutrients, we conclude that there may be an error in the question or the options provided.