Your New Colleague from China Does Not Have Much to Say

Your new colleague from China does not have much to say during your business meeting. What is a culturally-appropriate explanation for his silence?

A) He did not prepare well for the meeting and is confused
B) His culture places less emphasis on words and relies more on nonverbal cues.
C) He is displeased with your proposal and hopes to quickly end the meeting.
D) His culture's ideas of politeness requires that he let you finish speaking first.