How do you configure a solution to ensure the email includes the case ID for the survey?

A survey is sent to a customer via email.

How do you configure a solution to ensure the email includes the case ID for the survey?
A . Create a required field for the case ID that must be entered by a user during the case process prior to sending the survey.
B . Call a data transform to copy the case ID from pyWorkPage to the email.
C . Create a process using the Send Email step allowing representatives to quickly add the case ID to the email.
D . Use the Insert Property feature of a Send Email step to add the case ID when composing the message dialog.

Answer: D