A) We had pet insurance but still owed $40 in fees.
B) We had pet insurance: but still owed $40 in fees.
C) We had pet insurance but, still owed $40 in fees.
D) We had pet-insurance but still owed $40 in fees.


Answer :

Answer:

I think it's be your welcome

Answer:

A. is correct.

Explanation:

Don't be confused (or fooled) into thinking that you need a comma before the coordinating conjunction 'but.'  You would only add a comma if that second clause contained a subject, e.g. ....

We had pet insurance, but we still owed $40 in fees.