In 2019 Mary received a $700 refund of previously paid medical expenses that she deducted on her 2018 tax return, Mary claimed $12,500 in totalitemized deductions including $4,500 in deductible medical expenses for the 2018 tax year. What amount of the refund, if any, should Mary include in her 2019 gross income? Multiple Choice $0 $4,500 O $700 0 $500