阅读下面的短文,把A—E五个句子填入文中空缺处(50— 54),使短文内容完整正确,然后完成第55题.

阅读下面的短文,把A—E五个句子填入文中空缺处(50— 54),使短文内容完整正确,然后完成第55题.
Plants are important living things.Life could not go on if there were no plants.
50 But animals and men can't make food from them.51 Men live on plants and animals too.So animals and men need plants to live.52 If you look carefully at the plants around you,you will find there are many kinds of plants.53 Most plants are green.Some plants have many small leaves; others have only a few large leaves.54 They are different in shapes(形状)and colors.
Except having different shapes and colors,leaves are also different in other ways.Some leaves have short stalks(叶柄)while others have long ones,some others have no stalks at all.
A.That is why we find there are so many plants around us.
B.There are many kinds of leaves.
C.Animals get their food by eating plants and other animals.
D.This is because plants can make food from air,water,and sunlight.
E.Some plants are large while others are small.
55.Which is the best title(题目)for this passage?
A.PLANTS B>PLANTS AND WATER C>PLANT LEAVES D>MAN AND PLANTS