You need to present the Dataverse data design for the solution visually. 
What tool will you use for your presentations?

Answer options:

A.Dataverse Plugin Registration Tool
B.Webhook
C.Proof of concept demo
D.ERD
E.Azure Function

Correct Answer: D 
For a visual presentation of your data design, you need to use the Entity Relationship Diagrams (ERD). You can use several applications, like XrmToolBox or Power BI Desktop, to read the Dataverse database and create a visual presentation of the tables` relationships. 
If you use the Power BI Desktop, you need to connect to your environment and select the tables you want to put on the diagram. After Power BI loads the data, you can select the Model button on the left vertical toolbar (Number 1), and the desktop renders the ERD presentation (Number 2). 

All other options are incorrect. 
For more information about the ERD data model presentation, please visit the below URL: 

https://docs.microsoft.com/en-us/learn/modules/data-modeling/3-data-model
https://docs.microsoft.com/en-us/dynamics365/customerengagement/on-premises/developer/use-metadata-generate-entity-diagrams
https://www.youtube.com/watch?v=CjndBRu-e6Q
https://dynamics-chronicles.com/article/xrmtoolbox-dataverse-export-entity-relation-diagram