What is true about the Japanese negotiators?

A、 They put stress on details of contracts.
B、 They are known to be polite, hospitable and patient, nodding all the time through negotiation.
C、 They use more nonverbal means of communication.
D、 They tend to play the weaker side in the negotiation process.
E、 Decisions are made by the authorities.
F、 Being talkative is appreciated in their culture.