Answer:
Gene expression is the process the cell uses to produce the molecule it needs by reading the genetic code written in the DNA.
Explanation:
To do this, the cell interprets the genetic code, and for each group of three letters it adds one of the 20 different amino acids that are the basic units needed to build proteins.
It's a fact. Not an opinion, but a fact. And a correct one as well.
You're answer is A because when you think about it these creatures lived before any of the other creatures on your list
