Kathy has two jobs. She has a full-time job with Reliant Corp. and a part time job with New-Power Corp. She uses her car to get to work and the mileage involved each work day is the following: From her home to Reliant is 50 miles, from reliant to NP is 15 miles, and from NP to her home is 50 miles. Kathy's deductible mileage for each work day is:

a: 65 miles

b: 50 miles

c:15

d:115

e:0