Which of the followings are true? A: A. Tiger: 03:00 ~ 05:00 named Yinshi, when tigers hurt their prey more and show their ferocity. B: B. Ox: 01:00 ~ 03:00 named Choushi, when oxen begin to crush the food, regurgitating to the mouth slowly and comfortably. C: C. Dog: 19:00 ~ 21:00 named Xushi, when dogs begin to carry out their duty of guarding the houses. D: D. Pig: 23:00 ~ 1:00 named Haishi, when pigs are sleeping sweetly.