Which two elements should the developer use to implement these business requirements?

As part of point-to-point integration, a developer must call an external web service which, due to high demand, takes a long time to provide a response. As part of the request, the developer must collect key inputs from the end user before making the callout.

Which two elements should the developer use to implement these business requirements? Choose 2 answers
A . Apex method that returns a Continuation object
B. Screen now
C. Process Builder
D. Lightning web component

Answer: A,D