How should this information be transferred?

Universal Containers wants to default information on the Quote Line from a Product field.

How should this information be transferred?
A . Create a cross-object formula field that stores the Product Field’s value in the Quote Line field.
B . Create two fields with the same API name and type on the Product and Quote Line.
C . Create a Price Rule that stores the Product field’s value in the Quote Line field.
D . Create a Workflow Rule that stores the Product field’s value in the Quote Line filed.

Answer: B