Elimination is always the best. Pick out the worst possible answers, so it'll give you less choices to pick from. Or you could always pick c. I wouldn't advise that. Good luck on your test. :)
Answer:
1. Ken lack confidence in his self
A. The people doing the downloading
Answer:
Well, I assume that you are referring to the SECOND sentence. The only error is the missing obligatory comma after the coordinating conjunction "so."
Explanation: