CBSE BOARD XII, asked by shreyagupta21052001, 6 months ago

Who discovered vitamin A?

(a) Theo Hayman (b) McCollum (c)O’ Donnell (d) None of these

Answers

Answered by jayalakshmi1118

Answer:

none of these

Explanation:

Answered by Anonymous

Answer:

none of the above

the correct answer is David Adriaan van Dorp and Jozef Ferdinand Arens.

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