Find out the correctly matched pair

Answer

D

Explanation

Zinc – Specific role in the synthesis of Auxin (IAA) hormone in the cell. Magnesium – Helps in maintaining the ribosome structure. Calcium – Needed during the formation of the mitotic spindle. Manganese – Needed in the splitting of water to liberate oxygen for photosynthesis. Potassium – Plays a role in the opening and closing of stomata.