Preschoolers use private speech:

Question

A. to influence others
B. to keep some of their ideas a secret
C. because it is more efficient
D. because it enables them to communicate new ideas

Answer 1

It could be B or C. It might even be D.

I don't like your choices.

Check your text and this article.

http://en.wikipedia.org/wiki/Private_speech

Answer 2

my answer on this is c. thanks for your help.