How should the Admin set up this data flow?

Universal Containers wants to ensure that information in custom fields provided on original Quote Lines should also appear on Quote Lines for the Renewal Quotes.

How should the Admin set up this data flow?
A . A custom formula field should look up through the SBQQ__Source__c Quote Line lookup to the original Quote Line.
B . Renewal Quote Line values are automatically mapped from original Quote Lines.
C . A Price Rule should be created to pull the value from the original Quote Line and populate the Renewal Quote Line.
D . A twin field should be created on both the Asset and Subscription objects to bring back to Renewal Quote Lines.

Answer: D