You create a model-driven app and want to share it with the team. 
What should be your security roles to accomplish this task?

Answer options:

A.System Customizer
B.System Administrator
C.Basic User
D.Environment Maker
E.Environment Admin

Correct Answers: B and D 
If you need to share your model-driven app, you need to have Environment Maker or System Administrator`s role. 
Environment Maker can create new resources, like apps, flows, connections, gateways, share the apps with the users in an organization. But this role does not have privileges to access the environment’s data. 
System Administrator has full permission to the environment, including managing the security roles.
Option A is incorrect because System Customizer has full permissions to customize the environment, but they can only view records for the tables they create. This role cannot share a model-driven app.
Option C is incorrect because Basic Users can run an app in the environment and access the data they create. This role cannot share a model-driven app.
Option E is incorrect because Environment Admin can perform all administrative tasks in the environment without a provisioned Dataverse database. This role does not exist in the environments with the Dataverse database.
For more information about sharing a model-driven app, please visit the below URL: 

https://docs.microsoft.com/en-us/learn/modules/get-started-with-model-driven-apps-in-powerapps/5-control-security-when-sharing-model-driven-apps
https://docs.microsoft.com/en-us/powerapps/maker/model-driven-apps/share-model-driven-app
https://docs.microsoft.com/en-us/power-platform/admin/database-security