Which of the following quotes indicates added text?

Don Tapscott said, "Just as the Internet drops transaction and collaboration costs...it also drops the cost of dissent, of rebellion, and even insurrection."
Don Tapscott said, "Just as the Internet drops transaction and collaboration costs, [sic] also drops the cost of dissent, of rebellion, and even insurrection."
Don Tapscott said, "Just as the Internet drops transaction and collaboration costs...it [the Internet] also drops the cost of dissent, of rebellion, and even insurrection."
Don Tapscott said, "Just as the Internet drops transaction and collaboration costs in business and government, it also drops the cost of dissent, of rebellion, and even insurrection."

Question

Which of the following quotes indicates added text?

Don Tapscott said, "Just as the Internet drops transaction and collaboration costs...it also drops the cost of dissent, of rebellion, and even insurrection."
 Don Tapscott said, "Just as the Internet drops transaction and collaboration costs, [sic] also drops the cost of dissent, of rebellion, and even insurrection."
 Don Tapscott said, "Just as the Internet drops transaction and collaboration costs...it [the Internet] also drops the cost of dissent, of rebellion, and even insurrection."
 Don Tapscott said, "Just as the Internet drops transaction and collaboration costs in business and government, it also drops the cost of dissent, of rebellion, and even insurrection."

Vocaloid · Answer

narrow it down to the two sentences with text inside brackets

between those two, which one of them indicates text that has been added to make the context of the sentence clearer?

Gdeinward · Answer

If you are still having trouble the answer is C. This is the proper format in these types of quotes.