On New Year's Day, 2009, an economic and trade delegation from Yantai went to Southeast Asia to purchase goods and visit. It completed the problem 12- 13. The following products are most likely to appear in the order. Southeast Asia is an important producer of tropical cash crops in the world. At present, the output and export of natural rubber, palm oil, coconut, coconut oil and banana hemp are among the highest in the world. At present, the output and export of natural rubber and palm oil in Thailand rank first in the world. The Philippines is the country that produces coconut and exports coconut oil the most.

Therefore, choose: B.