What are three basic building blocks of Salesforce Flow?

What are three basic building blocks of Salesforce Flow?
A . Element
B . Resource
C . Variables
D . Constants
E . Connector

Answer: A,B,E

Explanation:

Flow has three major building blocks known as Element, Connector, and Resource. With the help of these blocks, you can easily develop Flows. Element represents an action that Flow can use to display or collect information from the Flow user, create or update records, delete records, or loop logic.