Choose the sentence that shows the CORRECT use of a comma in a compound sentence. A compound sentence is two complete sentences joined together with a comma and a conjunction

I like the cafeteria food so I eat there, everyday.
The recipe calls for two eggs and we have, only one.
My mother is a senior citizen, but she still has skill in driving her car.
The fish was advertised as fresh but it had a bad, smell.

My mother is a senior citizen, but she still has skill in driving her car.