Although a deficiency of any one of the elements listed may result in chlorosis, only one of these elements is an element found in chlorophyll. Which is it?

Although a deficiency of any one of the elements listed may result in

1.	Although a deficiency of any one of the elements listed may result in chlorosis, only one of these elements is an element found in chlorophyll. Which is it?
A.	Magnesium
B.	Zinc
C.	Iron
D.	Chloride
Answer» B. Zinc