What role does DNA play in the production of a protein?
A. It unwinds partway to expose the gene that codes for the protein.
B. It unwinds completely so that it can form a new chromosome.
C. It unwinds completely so that each half can serve as a template.
D. It unwinds partway to expose the amino acids that code for the protein.

A

Explanation:

The coiling up of DNA with the help of histone proteins - to what is called heterochromatic regions-  is part of gene regulation. This makes genes inaccessible to RNA polymerase that makes mRNA from the genes. When the genes are exposed by DNA unwinding, these genes are transcribed and the resulting mRNAs are translated by ribosomes into proteins.

The DNA never unwinds completely, but rather does so region by region, because if it does so it would become so long that it wouldn't fit in the nucleus or cell.

i think   the answer is c hope i'm right