Which of the following nutrient elements is not a micronutrient?

Answer: Option C

Sulphur is a nutrient element that is not a micronutrient.
There are about seven nutrients essential to plant growth and health that are only needed in very small quantities.
Sulphur is a macro element in plant nutrition. Elemental Sulphur is available to plants. Oxides are converted to sulphates along with Sulphur. It is essential for many growth functions in plants including nitrogen metabolism, enzyme activity, and protein and oil synthesis.