GWD-5-Q27

In April 1997, Hillary Rodham Clinton hosted an all-day White House scientific conference on new findings that indicates a child’s acquiring language, thinking, and emotional skills as an active process that may be largely completed before age three.

1. that indicates a child’s acquiring language, thinking, and emotional skills as
2. that are indicative of a child acquiring language, thinking, and emotional skills as
3. to indicate that when a child acquires language, thinking, and emotional skills, that it is
4. indicating that a child’s acquisition of language, thinking, and emotional skills is
5. indicative of a child’s acquisition of language, thinking, and emotional skills as

BDE要怎么区分呢???

而且D用are/is是由谁确定???