In the last sentence of the passage "its private partner" refers to ______.

A．the gap in technology and wealth between poor and rich countries
B．inadequate training which technicians in poorer countries have received
C．the availability of computer and Internet technologies to different nations
D．the difference in the number of Web sites created in poor and rich countries

A．measures should be taken to bridge the world's digital divide
B．rich countries should help poor countries to create more Web sites
C．rich countries should help poor countries to develop their economy
D．sustainable development is important to both poor and rich countries