单选题：Even a child knows that nodding (点头 ) the head means "Yes".

Even a child knows that nodding (点头 ) the head means "Yes". But some peoplewillprobably be puzzled when they first come to India. When they talk to an Indian, he oftenshakes his head. They might think that the Indian does not like what he said, but on the contrary he is expressing agreement.
The Indians have a habit of shaking their heads slightly when they talk to somebody. Itdoesn't mean "No", but "Yes".
If a person doesn't know this, it might cause misunderstanding.
At one time a foreigner in India told his driver who was an Indian to take him to his office.The driver shook his head. The foreigner repeated his request and the driver shook his head again. At last, the foreigner shouted angrily, "Drive me to my office at once!" The driver saidin a low voice, "Yes, sir," smiling and shaking his head again at the same time.
根据以上内容,回答题.
Generally speaking, nodding the head means__________, and shaking the head means__________( ) A．Yes, No
B．No, Yes
C．Yes, Yes
D．No, No