Bob and Donna have been married for 35 years and have filed joint returns since their marriage. The couple has 3 children: Jack age 11, Bonnie age 16, and Margie age 22. All three children live with Bob and Donna. None of the children provide more than half their own support. Margie is a full time student at a local university. Margie is married. her and her husband report no tax liability on their joint return. If the couple had filed separately, Margie would have no tax tax liability on her return but her husband would have had a $550 tax liability on his separate return. Xan Bob and Donna claim Margie on their return? Why or why not?