Which two scenarios require an Apex method to be called imperatively from a Lightning web component? Choose 2 answer

Which two scenarios require an Apex method to be called imperatively from a Lightning web component? Choose 2 answer
A . Calling a method that makes a web service callout
B. Calling a method that is not annotated with cacheable-true
C. Calling a method with the click of a button
D. Calling a method that is external to the main controller for the Lightning web component

Answer: B,D