Which one of the following is correctly matched ?

Explanation:

• Passive transport of nutrients – ATP: This is incorrect. Passive transport does not require energy (ATP); it relies on the concentration gradient to move substances across membranes.
• Apoplast – Plasmodesmata: This is incorrect. The apoplast refers to the continuum of cell walls and intercellular spaces through which water and solutes move freely, while plasmodesmata are cytoplasmic channels that connect adjacent plant cells, facilitating symplastic movement.
• Potassium - Readily immobilization: This is correct. Potassium (K⁺) is relatively immobile in soil because it binds to negatively charged soil particles, making it less susceptible to leaching. However, within the plant, potassium is highly mobile, moving easily to areas of active growth.
• Bakane of rice seedlings - F. Skoog: This is incorrect. Bakanae disease in rice seedlings is caused by the fungus Fusarium fujikuroi, and the condition was first described by Japanese scientist Eiichi Kurosawa in 1926.

Therefore, option c. Potassium - Readily immobilization is the correctly matched pair.