Answer:
The author responded to the conflicting viewpoints by describing a different alternative to it.
Explanation:
In "The High Line" passage, the author is trying to introduce with the beginnings of the High Line in New York City. The author describes how elevated mode of transport was constructed in the city and how it was opposed by the people of the city.
In the given passage, the author responds to the conflicting viewpoints by describing how that other cities also began to establish high lines.
It forms an adjective. Danger by itself is a noun, if you add the suffix -ous, it makes it an adjective (A dangerous man). The adverb would be if you added -ous + -ly, and make it - dangerously (He drives dangerously). There is no verb "danger" or using any of its derivatives, the only way to make a verb out of danger is to add a prefix -en, and make it - endanger.
