Question

who discovered Vitamin A? (a) Dr. MC Collum. (b) Dr. Cuubertin. (c) Dr. J.B. Nash. (d) Dr. Harvard​

Answer 1

Answer:

option a

Explanation:

A, he's the one who discovered vitamin a and b

Answer 2

Elmer McCollum discovered Vitamin A.

Explanation: The first scientist who discovered vitamin A was Dr. Elmer McCullem.

• Elmer McCollum was an American biochemist who discovered both  Vitamin A and Vitamin B.
• In the year 1913, Elmer McCollum discovered two new species of vitamins at the University of Wisconsin and named them fat-soluble factor A.
• Later, these two species of vitamins were named as vitamin A and vitamin B.