Which of the following examples support the idea

Which of the following examples support the idea that a bridge language makes it possible to communicate between people from different cultures？

A.An exchange student in MIT from Hunan, China, who talks about Lao Gan Ma chilli sauce in English, is transmitting Hunan cuisine culture.

B.All of the above.

C.With English as a lingua franca, a French can talk with a Chinese at a pub in Berlin.

D.During the Rio Olympic Games, athletes and tourists from all over the world can talk in English about their own liveliest festivals when enjoying the Rio carnival march.