Which two tools could an app builder combine to display the number of open cases on the account page?

Universal Containers is expecting impacts to operations due to increased demand. The executive team will be reaching out to current customers and want to see the number of open cases for the account and parent account.

Which two tools could an app builder combine to display the number of open cases on the account page? Choose 2 answers
A . Flow
B. Workflow
C. Approval Process
D. Process Builder

Answer: B,D