Mr. and Mrs. Ohlson file a joint income tax return. Determine if each of the following unmarried individuals is either a qualifying child or a qualifying relative.

a. Son Jack, age 20, lives in his parents' home and works full-time as an auto mechanic. Jack is self-supporting except for the fact that he does not pay rent to his parents.

b. Daughter Brenda, age 22, is a full-time college student. Brenda lives in a dormitory during the school year, but her parents' home is her permanent residence, and her parents provide 100 percent of her financial support.

c. Nephew Eddie, age 16, has lived in Mr. and Mrs. Ohlson's home since 2013. Eddie is a high school student who earned $6,690 this summer working for a plumber. Because his aunt and uncle provide 100 percent of his financial support, Eddie is saving his earnings for college.

d. Mr. Ohlson's mother, Mildred, age 64, lives in a retirement community. Mr. and Mrs. Ohlson provide about 65 percent of her financial support. Mildred earned $4,650 this year as a part-time librarian.

e. Mrs. Ohlson's father, Richard, age 76, has lived in Mr. and Mrs. Ohlson's home since 2015. Mr. and Mrs. Ohlson provide about 30 percent of his financial support. The rest of his support comes from Social Security.