Explanation: I would say omit is the closest because I searched the defintion of each word. Incorporate means to take in or contain. Omit is to leave out or exlude, this one seems promising, and stabilize and maintain are synonyms and mean to make or become unlikely to give way or overturn so that one doesn't seem very correct. Finally, usher as a verb means to show or guide, this one doesn't seem correct either. So through process of elimination, you now know that Omit is the correct answer, because it means to leave out or exlude, while incorporate means to take in or contain, SO BOOM!!! there you go, solid proof that omit is the answer.
