What are three reasons that a developer should write Jest tests for Lightning web components? Choose 3 answers

What are three reasons that a developer should write Jest tests for Lightning web components? Choose 3 answers
A . To test basic user interaction
B. To verify that events fire when expected
C. To test how multiple components work together
D. To verify the DOM output of a component
E. To test a component’s non-public properties

Answer: B,D,E