Of all of the man's mistakes which one was the worst because it led to the
others?
OA) He made a fire under a tree.
OB) He fell in the creek.
OC) He did not pay attention to the dog's warning
OD) He left the fire.
I'm not 100% sure, but I would say C since the dog must have been warning the man that he would fall in the creek and have to leave if he started the fire.