A、He has learned a lot from his own mistakes. B、He is quite experienced in training wild dogs. C、He finds reward more effective

M：Now，Miss，do you feel all right now? What happened?
W：Yes，I’m fine now．I was just at the motorway．I was driving along the main road and when suddenly right before the crossroads I met the car came out at the side street．I didn’t see it until it hit me．
Q：Where was the other car?

W：Your dog certainly seems to know you are his master．Did you have to punish him very often when you train him?
M：I found it’s much better to praise him when he obeys and not to be so fussy when he makes mistakes．
Q：What does the man say about training dogs?