Which one of the following sentences is punctuated correctly? a. della arrived on time, it was just two o'clock. b. i found a large, smooth, rock on the beach yesterday. c. she kept my surprise a secret, but she had a hard time doing it. d. darleen chose tara, holly, and, marlene as her lab partners.

Your answer is B I found a large, smooth ,rock at the beach yesterday because it is not D because theirs a punctuated after and its not A because it slows the sentence down when it came down to B,or C I choose B because the puntions seem in the right place.

Years your answer is B.

P.S if not B choose C but I'm with C.