Richard, age 50, is employed as an actuary. For calendar year 2019, he had AGI of $130,000 and paid the following medical expenses:
Medical insurance premiums $5,300
Doctor and dentist bills for Derrick and Jane (Richard's parents) 7,900
Doctor and dentist bills for Richard 5,100
Prescribed medicines for Richard 830
Nonprescribed insulin for Richard 960
Derrick and Jane would qualify as Richard's dependents except that they file a joint return. Richard's medical insurance policy does not cover them. Richard filed a claim for $4,800 of his own expenses with his insurance company in November 2019 and received the reimbursement in January 2020. What is Richard's maximum allowable medical expense deduction for 2018?
a. $0
b. $7,090
c. $10,340
d. $20,090
e. None of the above