The taxpayer in every case below is a U.S. citizen and not a dependent. Which of the following individuals meet the dependency tests as a qualifying child of the taxpayer? Brad (17) is the taxpayer's stepson. He lived with the taxpayer for five months and moved out with his mom when the taxpayer and Brad's mom got a divorce. The taxpayer contributed over 50% of the support of the household. April's mom left April (6) with the taxpayer about two years ago and has not been heard from since April is not related to the taxpayer Meanwhile, the taxpayer has been raising April as her own child, she pays for 100% of her support, and no one else lives in their household Stacy (19) left home three years ago and moved in with her sister Tracy (21). the taxpayer Stacy is a full-time student who paid less than 50% of her own support and earned $15,000. The taxpayer's father. Martin (62), was sick, did not have any income, and lived with the taxpayer all year. The taxpayer paid all of Martin's support for the year. Martin's wife (60) works and earned $20,000. They are filing married filing jointly (MFJ)