D. Grace, age 42, had AGI of $130,000 and paid the following medical expenses in 2020: Medical insurance premiums Doctor and dentist bills Prescription medicines Nonrescription medicines $5,300 $13,000 $1,790 $750 What is Grace's maximum allowable medical expense deduction for 2020? A) $11,090 B) $20,840 C) $10,340 D) $20,290