How should the consultant create an installed package in Marketing Cloud to facilitate this functionality?

A customer’s web developer team is creating a form that will leverage a Marketing Cloud REST API endpoint to upsert rows into a data extension.

How should the consultant create an installed package in Marketing Cloud to facilitate this functionality?
A . Enable the package for all business units in the Marketing Cloud account.
B. Create a separate installed package for each individual web form.
C. Instruct the web team to store the client ID and secret in the client-side code.
D. Ensure the package scope includes Read and Write permissions for data extensions.

Answer: D