What is necessary to make them functional?

Newly created subplaybooks do not have any inputs, or outputs.

What is necessary to make them functional? (Choose two.)
A . Define input key in the subplaybook task. Map context values to pull from parent playbook.
B. The output of the previous task automatically becomes the input of the subplaybook.
C. Map inputs and outputs to the parent playbook and the subplaybook will use the same
values.
D. Open the subplaybook and add inputs or outputs in the Playbook triggered task.

Answer: A,D