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Answer :

Answer:

A. Adrenaline

Explanation:

adrenaline is a hormone

Answer:

A. Adrenaline

Explanation:

A is NOT correct because the actual 4 chemicals in DNA are Adenine,Cytosine, Thymine and Guanine.

Adrenaline is NOT part of the 4 chemicals of the DNA, which makes A correct answer.