学校每周都有一次升国旗仪式，每当奏响国歌、五星红旗冉冉升起时，我们都会感到无比的骄傲和自豪。历史上确定五星红旗为国旗、《义勇军进行曲》为代国歌的会议是

A．七届二中全会

B．中央人民政府第一次全体会议

C．十一届三中全会

D．第一届中国人民政治协商会议

Woman: Is the rescue crew still looking for survivors of the plane crash
Man: Yes, they have been searching the area for hours, but they haven’t found anybody else. They’ll keep searching until night falls.
Question: What do we learn from the conversation（）。

A. All the passengers were killed.

B. The plane crashed in the night.

C. No more survivors have been found.

D. It’s too late to search for survivors.