阅读下面两篇短文，从短文后各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

Hello. We are students from Thailand, and we want to save the elephants. The elephant is one of Thailand's symbols. Our first flag had a white elephant on it. This is a symbol of1.

Elephants are2animals. They can play soccer or music. They can also draw very well. People say that "an elephant never forgets". Elephants can walk for a long time and never3. They can also remember places with food and water. This helps them to live.

But elephants are in great4. People cut down many trees so elephants are losing their ivory. Today there are only about 3, 000 elephants （over 100, 000 before）. We must save the trees and not buy things5of ivory. Remember that March 13th is Thai Elephant Day.