Which plant nutrient move from soil to the roots by root interaction, mass flow and diffusion in equal proportion

Answer: Option A

Zinc is the plant nutrient that moves from the soil to the roots by root interaction, mass flow, and diffusion in equal proportion.
Zinc is not mobile in the soil. It tends to stay where it has been placed. Crop-up take is therefore reliant on the plant roots growing intercepting the applied zinc rather than zinc moving in the soil solution to the roots. In some cases, roots may induce zinc deficiency.