下列四个图象分别表示对应的四种操作过程，其中表示正确的图象是（　　）

Look at the tree. It is big and strong. It has a trunk. The trunk is big and brown. It has branches. They are brown too. Its leaves are green and beautiful. We can see some little flowers on the tree. But we can’t see the roots. They are under the ground.

读图，完成以下问题。

纵观人类文明发展史，法制观念、法律意识一直都是不可或缺的重要组成部分。结合所学知识，完成下列填空。