An American Manager Goes to a Company in Japan to Give

An American manager goes to a company in Japan to give a formal presentation. When he pauses during the presentation, his Japanese counterparts also remain silent. In this situation, what should the American manager do?

A) He should fill the silence with anecdotes about his family.
B) He should leave as this is how the Japanese signal their disagreement.
C) He should start again because the Japanese have not understood the concept.
D) He should wait for the Japanese managers to respond.
E) He should offer the Japanese refreshments to make them feel comfortable.