If benefit means= having advantage to something then the antonym would be the opposite of benefit which would be=drawback whose meaning is: be less accessible to something, disadvantage
The answer is C. Wait patiently for your turn :)
English has gone through many phases. English was different in the earlier centuries because of the necessity. With all this new technology there has got to be new words being invented. English language went through natural selection. Some words, phrases and song stuck with us and others withered away.
Richard Gere born Aug. 31, 1949
J.K. Rowling born July 31, 1965
Nicole Kidman born June 20, 1967
earliest born was Richard Gere