An adverb is simply a word that describes a verb.
Example: In the sentence "He ate lunch yesterday" yesterday is describing the the time the action (verb) is happening. Yesterday is the adverb.
A. Sheila ate her lunch in the cafeteria.
Answer/Explanation:
American imperialism describes policies aimed at extending the political, economic, and cultural influence of the United States over areas beyond its boundaries. Depending on the commentator, it may include military conquest, gunboat diplomacy, unequal treaties, subsidization of preferred factions, economic penetration through private companies followed by intervention when those interests are threatened, or regime change.