Answer:
I would say "Chips and cookies are high in fats and sugars which increases the risk of obesity.", because it is a direct cause of the problem, student obesity. :)
The answer is distressful
If the italicized part of the sentence is the word <em>courses, </em>then the correct answer is predicate noun/nominative.
A predicate nominative is the first noun found after a linking verb, such as to be, or in this sentence, the verb <em>are. </em>You can see that the first noun following the verb <em>are </em>is the word <em>courses, </em>which means it is a predicate nominative.
The correct answer for this would be option B. Based on the given sentence above, the highlighted part of the sentence which is "<span>who had been to the mansion before," is called an appositive phrase. This is considered as an appositive phrase because it renames or describes the noun next to it. Hope this helps.</span>