Concept:The underlined word is “genuine,” which means real or authentic.
Its opposite should mean not real or counterfeit.
Explanation:“Genuine” refers to something that is truly what it is claimed to be.
Among the options, “fake” means not genuine, imitation, or counterfeit.
“Artificial,” “fraudulent,” and “substandard” do not fit the exact opposite meaning here.
Therefore, the word that is most nearly opposite in meaning and correctly fills the gap is “fake.”
Answer:C. fake