These are the available options for assignment review, located under Review Options in the Settings tab when editing assignment settings.

The attempt
Allow the attempt to be viewed, letting students see the questions and available feedback.
Whether correct
Shows, per question, whether the answer was correct or incorrect.
Shows score per question.
Shows overall grade on assignment.
Specific feedback
Feedback provided, per question, that may be different depending on the answer given.
General feedback
Feedback provided, per question, regardless of answer given.
Right answer
Show the correct answer to the question when hovering over the question with the mouse. Overall feedback