What Can We Conclude About the Comparison Between Experts and Nonexperts

What can we conclude about the comparison between experts and nonexperts, with respect to writing?

A) An expert writer is more likely to approach a revision one sentence at a time.
B) An expert writer is more likely to have a global sense-rather than a specific sense-that something is wrong with a sentence.
C) An expert writer spends longer looking for spelling errors.
D) An expert writer pays more attention to transitions between ideas.