This question has two parts. Answer Part A, and then answer Part B.
Part A
What had to happen before the chimpanzees could be
studied closely?
O 1. Jane had to act like she wanted to be a part of
their group.
2. Jane had to find a place to hide where they
could not see her.
3. Jane had to show them that she could travel
with them anywhere.
O 4. Jane had to help them understand that they
would be safe with her.

it be great if someone helped me