What should be checked to validate the installed package can access the child business unit data?

A developer is troubleshooting why an API client Jd and chent_secret are authenticating yet failing to access data from a child business unit.

What should be checked to validate the installed package can access the child business unit data?
A . The Installed Package has full Enterprise access to all available child business units
B. The Installed Package has access to the selected child business unit
C. The account id and parent MID are included in the authorization call

Answer: B