翻译选择题：Choose the proper English translation for the Chinese sentence.
上海市近年内交通工具发生了较大变化。

A．There have being many changes in the means of transportation in shanghai in recent years.
B．There have been many changes in the means of transportation in shanghai in recent years.
C．There are many changes in the means of transportation in shanghai in recent years.
D．There has being many changes in the means of transportation in shanghai in recent years.