I grew up and I got more mature and able to make my own decisions.
Since dogs have way better hearing than humans their ears are also a lot more sensitive. Loud scary noises like thunder would most likely sound way bigger and way more scary to a dog than humans. Also there might be rain or lighting. While rain will probably scare them because of the noise, dogs might be scared of lightning because they know the dangers of it.
I believe it would be C. Both chemical changes and flow of energies.
The Animal Committees described on Chapter III of <em>Animal Farm</em> have the purpose of organizing the animals into different functions. There are committees such as the Egg Production Committee for the hens, the Clean Tails League for the cows and the Wild Comrades' Reeducation Committee, to tame the rats and rabbits.
These initiatives were not successful, because the animals were behaving almost the same as before. The side effect of this reeducation was that when the animals were being treated with generosity, they took advantage of it. For example, the cat was trying to instruct some sparrows to perch on her paw for her own benefit after attending the Reeducation Committee.