Need it asap a blob fish

a student solved this problem and said the answer is miles.

jeff ran on two different days. the first day he ran mile and the second day he ran mile. what is the total distance jeff ran?

is the student's answer reasonable?

a.
yes, the answer is reasonable.

b.
no, the answer is not reasonable. it should be about 2 miles.

c.
no, the answer is not reasonable. it should be about mile.

d.
no, the answer is not reasonable. it should be about 3 miles.