What is the news item mainly about？A．Endeavour circled the earth for two days before comin

What is the news item mainly about？

A．Endeavour circled the earth for two days before coming back.

B．The American astronauts will spend a week in space.

C．Many people gathered to watch the launch of the spacecraft.

D．The American space plane has fulfilled its last assignment.

请帮忙给出正确答案和分析，谢谢！