下列关于我国“行政法规”的表述，能够成立的是( )。

A．行政法规是规范和调整行政法律关系的总称

B．行政法规是由行政机关制定的规范性法律文件的总称

C．由全部的行政法规构成的法律部门称作行政法部门

D．行政法规是一种效力仅次于宪法和法律的法律渊源

A beautiful young woman stopped a taxi in a big square and said to the driver, "Do you see that young man at the other side of the square" "Yes," said the driver. The young man was standing outside a restaurant and looking at his watch every few seconds. "Take me over there," said the young woman. There were a lot of cars, buses and trucks in the square, so the taxi driver asked, "Are you afraid to cross the street" "Oh, no." said the young woman. "But I said I would meet that young man for lunch at one o’clock, and it is now a quarter to two. If I arrive in a taxi, it will at least seem that I have tried not to be too late.\

The young woman wanted to take a taxi because ______.
A. there were to many cars, buses and trucks in the square
B. she wanted to show that she was in a hurry
C. she was too tired to walk