<span> An </span>adjective clause<span> is simply a group of words with a subject and a verb that provide a description. The </span>clause<span> starts with a pronoun such as who, whom, that, or which or an adverb such as when, where and why. I believe that based off this, the answer would be A. Hope this helps! </span>
The phrase in the capital words is A. an adjective phrase.
What kind of city? The city of Arizona.
Adjectives are used to describe the nouns.
From what I see all of the names are not capitalized so all of them seem to have the capitalization error
