Rob used track changes to suggest changes in jack's document. jack agrees with some edits and disagrees with others. what should jack do with the edits so that he has a clean copy of the document?
a. click the reject changes icon on the reviewing toolbar and select reject all changes in document.
b. click the next icon on the reviewing toolbar to review and then accept or reject each edit.
c. click the accept changes icon on the reviewing toolbar and select accept change for each edit.

In order to agree with some edits in the Track Changes that Rob suggested and to disagree with others, but still to have clean copy of the document , Jack should click the Next icon of the Reviewing toolbar to review and then accept or reject each edit.
If jack clicks the Reject Changes icon on the Reviewing toolbar and select Reject All Changes in Document. then he will reject all changes that Rob suggested (but he wants to keep some of them, so this is not an option)
If Jack click the Accept Changes icon on the Reviewing toolbar and select Accept Change for each edit then he will accept all changes Rob suggested and he does not want to do that (he wants to keep some of them as well).

I'm really not sure but but i think a