A portion of the following sentence is underlined. Below the sentence are five ways of rewording the sentence by replacing the underlined material. If you feel the underlined word produces a more correct sentence than any other alternative, choose A.

As computers continue to advance at breakneck speeds, many computer scientists have asked whether it will become so advanced and replacing the need for humans to work.

1. it will become so advanced and replacing (check answer)
2. it will become so advanced, replacing (check answer)
3. they will become so advanced that they will replace (check answer)
4. they will become so advanced, they will replace (check answer)
5. they will become so advanced, replace (check answer)

Solutions, hints, and questions are welcomed. A full solution will be posted on October 19th.