Option A can represent what the product of a reaction created with the two products represented would be.
What is a chemical reaction?
It is the interaction between different chemical elements.
It is a chemical phenomenon where atoms are rearranged.
For a chemical reaction to occur, we need to have at least two reactants. These reactants have an atomic organization that will be modified and reorganized during the reaction, creating a product.
The product must have the same atoms as the reactants but rearranged and modified. For this reason, option A is the one that best represents a product of a reaction.