问题详情

What is the main idea of the news item？
A．The summit of G20 promised to deal with Europe crisis without details.
B．G20 held a summit committed to intensify the International Monetary Fund.
C．The summit of G20 ended but reaching no agreement.
D．The summit of G20 promised to offer financial aid to Europe.请帮忙给出正确答案和分析，谢谢！