A compound sentence needs at least two independent clauses and can be combined by conjunctions such as and, or, but, for, yet, nor and so. The independent clauses can also be combined by a semicolon ;
(A)
If we look at A, we can see A does not have two independent clauses. There is a depend and an independent clause and that is why we have a comma after go in A.
(B)
What I said about A is the same for B
(C)
Ah! good old C. C has two independent clauses and has the conjunction and after mall and before John. This is very important because this is where one independent clause stops and another independent clause starts. C has everything that makes up a compound sentence so the answer is C.
(D)
If we look at D, we can see D is just a single independent clause, which is asking a question.
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Answer:
Do the students do their work themselves?
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The answer would be A.
Radio and Television
Radio news made its appearance in the 1920s. The National Broadcasting Company (NBC) and the Columbia Broadcasting System (CBS) began running sponsored news programs and radio dramas. Not just something to be enjoyed by those in the city, the proliferation of the radio brought communications to rural America as well. News and entertainment programs were also targeted to rural communities.
Television combined the best attributes of radio and pictures and changed media forever. As on the radio, quiz shows and games initially dominated the television airwaves. But when Edward R. Murrow made the move to television in 1951 with his news show See It Now, television journalism gained its foothold. As television programming expanded, more channels were added.
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