Opal fell on the ice and injured her hip this winter. As a result, she paid $3,170 for a visit to the hospital emergency room and $835 for follow-up visits with her doctor. While she recuperated, Opal paid $551 for prescription medicine and $634 to a therapist for rehabilitation. Insurance reimbursed Opal $1,370 for these expenses. What is the amount of Opal's deductible medical expense before considering any AGI limitations?

A. $3170

B. $4005

C. $3820

D. $5190

E. All of these choices are correct