It would be A.
They ARE currently going around the neighborhood, so that's why I would say A.
The answer to the literature question you have presented above would be character, plot, and setting. The three basic elements of all novels are plot, character, and setting. Harriet Beecher Stowe wrote the very successful novel in 1852 using these basic elements.
Answer:
If the shape of an enzyme changes then the enzyme will no longer be able to perform its function.
Explanation:
I think it is a run on because if you add 'but' in between 'tails, but pugs' it would be a sentence