阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
Do
you like collecting stamps? I'll tell you about a set of wonderful stamps!
China
has issued (发行) a
set of stamps to remember the great book Master
Sun's Art of War. The first stamps were issued at Linyi in east China's
Shandong Province.
Master
Sun was also called Sun Wu. He was a military strategist (军事家) during the Spring and Autumn
period (770 BC-476 BC). He was a general (将军) in
the army of the kingdom of Wu. During this period he wrote his great
work Master Sun's Art of War.
Master Sun's Art of War is composed of 13 parts. It is one of the earliest
and the most famous military books in the world. In the past 2, 500 years, the
influence of this book has extended (扩大) to the whole world.
The
stamps were drawn or designed by Chen Quansheng. He is a young artist. The
prices of the four stamps are 20, 30, 50 fen and one yuan. They are about Sun
Wu and the stories about him.
In
1972, the important ancient copies of the book were found in Linyi. This helps
understand Master Sun's military art greatly. The Linyi post office received
about 10, 000 letters asking for the first issues of the stamps.
