The dog was excited--running, barking, and he chased after the boys.
A) The dog was excited--he was running, barking, he chased after the boys.
B) The dog was excited--he was running, he was barking, chased after the boys.
C) The dog was excited--running, barking, chasing after the boys.
D) The dog was excited--he was running, he barked, he chased after the boys.