Answer:
A. Adjective
Step-by-step explanation:
The given phrase functions as an adjective as it describes the noun Americans. We can confirm this by the fact that it can be substituted by an adjective clause - a subordinate clause that functions as an adjective in the sentence:
- Americans enjoying the twice-fried potato snacks thought they were... = Americans who were enjoying the twice-fried potato snacks thought they were...
Adverbs are words used to modify verbs, adjectives, and other adverbs.
The subject is what the sentence is about.
The predicate nominative is a word or phrase that follows a linking verb and complements the subject of the sentence by renaming it or describing it (e.g. John is a good teacher).
The object of a preposition is a word that follows a preposition and completes its meaning.
A direct object is the receiver of the action represented by the verb.
An indirect object is a recipient of the direct object (She bought him a gift).
An appositive is a noun or a noun phrase that renames another noun right beside it.