Which statement is correct regarding the percentage of qualified medical and dental expenses taxpayers will be allowed to deduct on their 2019 tax return. a. All taxpayers will be limited to qualified medical expenses in excess of 7.5% of AGI. b. All taxpayers will be limited to qualified medical expenses in excess of 10% of AGI. c. Taxpayers over the age of 65 will be limited to qualified medical expenses in excess of 10% of AGI and those under the age of 65 will be limited to those in excess of 7.5% of AGI. d. Taxpayers over the age of 65 will be limited to qualified medical expenses in excess of 7.5% of AGI and those under the age of 65 will be limited to those in excess of 10% of AGI.