The Hendersons have two possible dependents for 2019, both of whom are not considered disabled for income tax purposes. Mr. and Mrs. Henderson adopted a son, Mike, in 2016. During 2019, Mike turned 19, earned $3,950, lived with the Hendersons and did not attend school. The Hendersons provided more than 50% of Mike’s support. Another possible dependent is Gina, a former household employee. Gina earned $4,500 during 2019 and lives in the basement of the Hendersons’ home. The Hendersons provide 75% of Gina’s support. Gina is not related to the Hendersons and turned 44 during 2019. Who are the Hendersons' dependents for 2019?