阅读下面短文，从短文后所给的五个选项中选出能填入短文空白处的最佳选项，使短文通顺、连贯，意思完整。

Paul has a new house and it's near a large pool. The air is nice and fresh. But there is one problem for him. A big tree is near Paul's house. The birds often fly into Paul's window. Sometimes the window is broken（被打碎的）, Sometimes a bird is hurt. He doesn't know what to do. His friend Peter says the birds like to fly into the window because they can't see it. Peter has a good idea. So the birds can see the window now, and they don't break（打破）the window after that.

A. So he likes living here.

B. Paul has to put new glass in it.

C. There are many green trees and beautiful flowers behind his house.

D. There are many birds in it.

E. He tells Paul to put some colorful pictures on the windows.