You create a model-driven app. The app has a Quick Create Form. You need to add a business rule that would run after a user fills the form and saves the record. 
What should be the scope of this rule?

Answer options:

A.Quick Create form
B.Main form
C.All screens
D.Entity

Correct Answer: D 
Microsoft Dataverse Business rules contain logic that users want to apply to the data. The rules consist of three parts: conditions, actions, and scope. A business rule is triggered when data meets the condition defined by the rule. After the rule is triggered, it performs defined actions within the scope. The scope of the rule is limited to the Entity, All Forms, and Individual Forms. 
The canvas apps always have an Entity scope for their business rules. The model-driven apps have the Entity and two other scopes. The Entity has a global scope: the rule runs whenever a record is created or updated by any Power Platform products or API calls. The All Forms scope makes sure that a business rule runs on all forms of your app, including Quick Create forms. 
If you need your rule to run only on one form, you need to be sure that it is the Main type. Then you can choose the form name (like Input form) from the Scope dropdown in the Rule Designer and use the action that is limited to the forms. 
All other options are incorrect because we need a rule to run when a user saves a record. The only rule with the Entity scope can do this. 
For more information about Dataverse business rule scope, please visit the below URLs: 

https://docs.microsoft.com/en-us/powerapps/maker/model-driven-apps/create-business-rules-recommendations-apply-logic-form
https://docs.microsoft.com/en-us/learn/modules/define-create-business-rules/2-components