To Qualify for a Medical Expense Deduction as Taxpayer's Dependent,a

To qualify for a medical expense deduction as taxpayer's dependent,a person must be a dependent either at the time the medical services were provided or at the time the expenses were paid.A person generally qualifies as a dependent for purposes of the medical expense deduction if the person:

A) Is an unmarried adult child of taxpayer's sibling.
B) Is the unrelated caregiver for taxpayer's elderly parents.
C) Would qualify as a dependent except for the amount of gross income.
D) Was a foreign student staying briefly at taxpayer's home.