All eyes are looking at Milan, Italy this May for the opening of the 2015 World Expo.
Food takes center stage at the six-month event, as this year's theme（主题）is   . Together 148 countries and international organizations are showing new food, energy, science and environmental technology in their pavilions(展馆),    .
China's exhibition area has three themes. "The Gift of Nature" shows crop processes according to the Chinese lunar calendar and the five colors of the soil. "Food for Life" shows the production of foods like tofu, China's famous eight schools of cuisine（菜肴）, and its tea culture.  follows the progress of science, including Professor Yuan Longping's hybrid rice.
Designed by Tsinghua University and New York-based Studio Link-Are, the pavilion shows the idea of a "Land of Hope". In fact, the pavilion is based on an important Chinese philosophy -- "Man is part of nature". It shows an attitude of thankfulness, repect and cooperation that characterizes its people. The "land" had fed man from its beginnings and the "hope" suggests a future . The event's official website Expo 2015 notes,"The underlying theme is balance between mankind and environment, between humanly and nature, Just as farmers look after and protect the earth,  .
To see different countries' culture, technology and economy in one place, visit Milan World Expo.

从方框内所给的选项中选出能填入空白外的最佳选项，补全短文。其中有一项为多余选项

A.so must people care for the planet B.in which food can offer life to everyone C."Technology and the Future" D.which are designed to share their unique food ideas. E.so we must keep the balance of nature F."Feeding the Planet, Energy for Life"