The answer to your question would be that the sentence that demonstrates the correct use of a conjunctive adverb is the following one: Lisa cleaned the Kitchen this afternoon; meanwhile, Donovan dusted the living room.
In this case, the conjunctive adverb "meanwhile" has been used as a coodinating conjunction to join two independent clauses. You need the semicolon to connect the two clauses.
"b. Ben Bernanke became chairman of the federal reserve in 2006" is the only factual sentence from the options listed. The others are opinions or haven't happened yet.
It might be said characterization could be achieved by option I “His features are strong and masculine, with an Austrian lip and arched nose . . . .” and III <span>“His voice was shrill, but very clear and articulate, and I could distinctly hear it when I stood up.” Both example, reveal information about the character which might help the reader to get a clear picture of how he looks like. In the case of sentence II, it seems to be more of speculation than a description. </span>
It is whom. You can only use who if you can replace is with he or she.
