阅读下列短文，从每小题的三个选项中选出最佳选项。

    My grandma lives in the countryside. This summer I want to stay there for my holiday. The countryside is very beautiful. There are many trees and a hill. The air is very fresh. Grandma is sixty-three years old. She keeps some hens and cocks. I think grandma is great. She can understand the hens' and cocks' words. When they say "Ge… ge.... Ge... ge…" they are hungry. Grandma gives them some food. When they say "Gi... gi... Gi... gi...", they are cold. Grandma takes them to their house. When the hens say "Gu... Ga.... Gu... ga…", they lay eggs. I ask her, "What do they say, Grandma?"  Grandma smiles and says, "If you stay with them every day, you can understand them, too."