Multiple choice

Which one of the following is a vitamin?

  1. Pepsin

  2. Parotene

  3. Keratin

  4. Progesterone
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The term 'Parotene' is likely a typographical error for 'Carotene' or a similar compound, but in the context of these options, it is the only one intended to represent a vitamin-like substance. Pepsin is an enzyme, Keratin is a structural protein, and Progesterone is a hormone.

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