The author's attitude toward space colonization is ______.

A．Warn people of the danger to live in space.
B．Offer opportunities for development to other scientists.
C．Discuss the relationship between space and man.
D．Study systematically the changes that space colonization may bring.

A．The breakdown of English.
B．The globalization of English.
C．The future of English.
D．The world domination of English.