Consider the following elements1. cobalt2. phosphorous3. ZincWhich of the above elements are required for the maintaining healthy human body ?

Consider the following elements1. cobalt2. phosphorous3. ZincWhich of

1.	Consider the following elements 1. cobalt 2. phosphorous 3. Zinc Which of the above elements are required for the maintaining healthy human body ?
A.	1 and 2
B.	2 and 3
C.	1 and 3
D.	1, 2 and 3
Answer» E.