Given below are some of the essential elements that are required by the plants to keep it healthy. Match them with their respective functions and select the correct code

Elements    

A.    Nitrogen    B.    Potassium

C.    Calcium        D.    Magnesium

Functions

1.    Regulates turgidity of the cell, opening and closing of the stomata

2.    Important component of amino acids, proteins, nucleic acids, pigments, amides, hormones

3.    Acts as the cementing material between the cells.

4.    Necessary for the formation chlorophyll

Code

    A    B    C    D