这个题怎么解释？GWD第一套36题

36.In April 1997, Hillary Rodham Clintonhosted an all-day White House scientific conference on new finidings thatindicates a child’s acquiring language, thinking, and emotional skills asan active process that may be largely completed before age three.

A.     thatindicates a child’s acquiring language, thinking, and emotional skills as

B.     thatare indicative of a child acquiring language, thinking, and emotional skills as

C.     toindicate that when a child acquire language, thinking, and emotional skills ,that it is

D.     indicatingthat a child’s acquisition of language, thinking, and emotional skills is

E.      indicativeof that a child’s acquisition of language, thinking, and emotional skills as

答案选C.that it is怎么理解？

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