The correct answer is C. Benifitted. The correct spelling is benefited.
The word "benefited" is a verb that means to receive advantage or profit from something. It is derived from the noun "benefit," which means a good or advantage. The word "benefited" is spelled with two "e"s and one "i."
The word "benifitted" is not a word in the English language. It is likely a misspelling of the word "benefited."