Respuesta :
A complex sentence always includes a subordinate clause, which is a piece of information which is often added in using commas. The sentence will make sense if you remove the clause, and the subordinate clause is dependent on the main clause. This means that it won't make sense by itself.
Therefore, the correct answer is D because "Once the company got onto the internet" doesn't make sense by itself, but it helps to form the whole sentence. Also, "The Dale and Thomas Popcorn Company quadrupled its business" makes sense by itself.
Therefore, the correct answer is D because "Once the company got onto the internet" doesn't make sense by itself, but it helps to form the whole sentence. Also, "The Dale and Thomas Popcorn Company quadrupled its business" makes sense by itself.