How does the author respond to conflicting viewpoints in his argument against the walkway? A. He personally attacks the mayor for having a misguided opinion about the walkway. B. He argues that tourists who visit the walkway will not increase the town's revenue. C. He argues that instead of making the riverbank prettier, the walkway will turn it into an eyesore. D. He argues that the cost of building and managing the walkway would end up bankrupting the town.