能够找到这样的四个正整数，使得它们中任两个数的积与2002的和都是完全平方数吗？若能够，请举出一例；若不能够；请说明理由．

_______ is even important is ______ as the earth cooled down, water began to appear on its surface.

A．That, that

B．What, that

C．What, what

D．It, that