A news article discussing the evolution of domestic dogs from wolves included this statement: "On its way from pack-hunting carnivore to fireside companion, dogs learned to love or at least live on wheat, rice, barley, corn, and potatoes."
What is a more scientifically accurate way to state what happened with dogs?
A) Dogs mutated to be able to eat wheat, rice, barley, corn, and potatoes.
B) Some wolves may have had variants in their digestion that allowed them to eat wheat, rice, barley, corn, and potatoes and so were able tosurvive with humans.
C) Being around humans represented an advantage, so wolves were able to take advantage of that by changing their digestion to be able toeat wheat, rice, barley, corn, and potatoes.
D) Dogs were created at the same time as wolves.

The correct option is B) Some wolves may have had variants in their digestion that allowed them to eat wheat, rice, barley, corn, and potatoes and so were able to survive with humans.

Explanation:

Organism of a population might have genetic variations in them due to many reasons. The species of a population which are better adapted to live in a particular area are able to survive and produce more offsprings. As a result, that particular area increases in that genetic variant.

In the above scenario, some of the wolves had variants in their digestion which made them better adapted to live with the humans as they could eat wheat, rice etc. The wolves which did not have variants in their digestion couldn't survive in the human areas.