Answer:
its a phrase
Explanation:
because a phrase is a group of words that may contain either a subject or a verb, but not both and the sentence " swimming laps at the pool " only contains a subject the person swimming at the pool is not in the sentence
Ai really dont know I need help
'Finally' is the answer the others don't make sense if you try to read them with the rest of the sentence.
Incorrect punctuation between elements
I'm not entirely sure tho