other posters here have mostly summarized the answer to this question already, but:shweta.kalra wrote:hei
can any expert plz explain "specifically" why choice "c" is wrong?
thnks
1) not idiomatic: you don't "do" inoculation. you inoculate people (or, in the passive voice, people are inoculated).
2) unacceptably vague: it's not clear enough who is being inoculated.
out of curiosity, why the quotation marks around "specifically"?
as a quick hint -- it seems you're trying to use those as a form of emphasis; quotation marks are not a valid way of indicating emphasis (in fact, in situations when you are not directly quoting anyone, their function is almost the opposite).
