A) Enzymes
B) DNA
C) Vitamins
D) Hormones
Correct Answer: C
Solution :
Vitamins Most of the vitamins must be supplied by food. Plant can synthesize all vitamins human body can synthesize vitamin A and some members of vitamin B and vitamin K. Main source of vitamins is our food. Enzymes: These are synthesized in body. Example Without - enzymes, it would take so years to digest a single meal. DNA: These are also present on our body in cells. Hormones: These are also secreted by glands n our body.
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