What are the workflow activities needed to do this?

A business team is sending out a promotional email and would like to automatically send a follow-up email two hours later to the recipients who did not open the initial email.

What are the workflow activities needed to do this?
A . Query, EmaiM. Wait, Fork, Email2, End
B. Query, Email!, Wait, Enrichment, Email2, End
C. Query, Emaill. Wait, Update Date, Email2, End
D. Query, Email!, Wait, Segmentation, Email2, End

Answer: B

Explanation:

To send a follow-up email two hours later to the recipients who did not open the initial email, the workflow activities needed are:

Query: Create a query to identify the recipients who did not open the initial email.

Email!: Create an email delivery activity to send the initial email.

Wait: Add a wait activity to wait for two hours.

Enrichment: Add an enrichment activity to update the delivery logs with the delivery status.

Email2: Create a second email delivery activity to send the follow-up email.

End: Add an end activity to end the workflow. https://www.indeed.com/career-advice/interviewing/email-follow-ups