Object X has a lookup field to Object Y. X needs to display a text value from a Text field on Y. To
ensure data Integrity, how would a developer implement this?

A.
Create a roll-up summary field on Object X that retrieves the value from Y.

B.
Create a text field on Object X and use a workflow rule to fill in the value upon the creation of X

C.
Create a cross-object formula field on Object X that retrieves the value from Y.

D.
Create a text field on Object X and use Apex to populate the value.