Ineed asap!

teresa wrote this expression to describe the total distance she was going to swim during two swim classes.

which situation could be described by this expression?

a.
teresa wasn't sure how far she would swim during the first class. she would swim 3 fewer laps during the second class.

b.
teresa wasn't sure how far she would swim during the first class. she would swim the same distance for 3 classes.

c.
teresa wasn't sure how far she would swim during the first class. she would swim 3 laps during the second class.

d.
teresa wasn't sure how far she would swim during the first class. she would swim 3 times farther during the second class.