In the Context of Language Development, Which of the Following

In the context of language development, which of the following statements is true of the communication styles in apes?

A) Apes in the wild tend to communicate their feelings or desires as humans often do.
B) Apes in the wild tend to communicate only what they want other apes to do, not their internal states.
C) Chimps use phonetic sounds to communicate with each other.
D) Chimps use grammatical language to teach other chimps how to use tools.