to be honest im not for sure because you don't have any answer choices
Answer:
In the presence of oxygen, pyruvate is transformed into an acetyl group attached to a carrier molecule of coenzyme A. The resulting acetyl CoA can enter several pathways, but most often, the acetyl group is delivered to the citric acid cycle for further catabolism.
The correction option is B.
DNA is the genetic material in living organisms and it is the basis for inheritance. DNA molecule is made up of nitrogenous bases, deoxyribose sugars and phosphate groups. In order for the genetic information in the DNA molecules to be preserved, the components of the DNA must be arranged in the correct order without any any error. Thus, for the nitrogenous bases inside the DNA molecule, they must be correctly paired with one another.