Which one of the following sentences is punctuated correctly?
ADella arrived on time, it was just two o'clock.
BShe kept my surprise a secret, but she had a hard time doing it.
CDarleen chose Tara, Holly, and, Marlene as her lab partners.
DI found a large, smooth, rock on the beach yesterday
ADella arrived on time, it was just two o'clock.
BShe kept my surprise a secret, but she had a hard time doing it.
CDarleen chose Tara, Holly, and, Marlene as her lab partners.
DI found a large, smooth, rock on the beach yesterday