阅读下列短文，从每题所给的四个选项（A、B、C和D）中选出最佳选项。

B

    What's this? It's letter(字母)P. What colour is it? It's green. What's this and what colour is it? It's letter E. It's brown. What's this letter? It's letter N. It's red. P-E-N. Is it "pen"? Yes, it is.

    I have a blue pen in my pencil case. My pencil case is orange. This is my book. It's my Chinese book. It' s in my bag. My bag is black. Look! The bag is on the chair. The chair is yellow. It's my chair. It's nice. I like it.