You create a custom entity. Records are created by users through the user interface, and through a backend Integration. You must combine two fields to populate a new field that will replace the name field on the entity. You need to ensure that the new field displays a result immediately after a new record is saved.
What should you use?
A . a background workflow
B . JavaScript code on the record form
C . a form-scoped business rule
D . a calculated field
Answer: D