Which sentence uses correct punctuation?


We never found the answer to our question, in fact, we’re still looking to this day.


We walked through the Red Oak Nature Center today; it was surprising how many bicyclists were there.


It was an extremely hot day, 99 degrees with a heat index of over 100 degrees.


The play was an actual wedding party, the actors were funny, outgoing, and playful party guests who interacted with the audience.