Sandy Recently Ended a Five-Year Relationship with Tom, Who Spent

Sandy recently ended a five-year relationship with Tom, who spent much of his free time at bars with his coworkers while they were together. Sandy's friends keep telling her that she needs closure before she moves on with her life. To seek closure, it would be appropriate for her to  

A) embrace her anger and think of ways to sabotage Tom's future relationships with women. 
B) try to forget that the relationship ever happened and start over with someone new. 
C) set aside time to grieve and find ways to make amends with Tom as well as with herself. 
D) vow to remain alone so as to avoid being hurt in the future.