Correct Answers: B, D and E
The Dataverse provides the web services as extension tools for interacting with the data and metadata. The Dataverse web services include Web API and Organization service. If you prefer to write the .Net code, the Organization service approach is the best bet. The Web API provides almost the same functionality by using the REST API protocol. The Organization service implements two assemblies: SDK assembly and XRM Tooling assembly for the Windows clients.
Dataverse Web API operations are divided into Functions and Actions.
Functions are operations that do not create any side effects. There are two types of functions: Functions and Query Functions. Functions typically retrieve data. You can invoke functions using the HTTP GET requests. Like Between, Contains, Last7Days, etc., Query functions are used as filter criteria in a query.
Actions can create a side effect on the server. They typically create or update the data. You invoke actions using the HTTP POST requests.
All other options are Web API Actions.
For more information about Web API Functions and Actions, please visit the below URLs:
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/webapi/overview
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/webapi/use-web-api-functions
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/webapi/use-web-api-actions