What should a consultant recommend?

A customer manually imports records for sending. Each record contains a warehouse ID that is shared between Marketing Cloud and a third-party system. The customer does not have developer resources, but wants to include the warehouse ID in their tracking parameters so that the third-party system can identify the subscriber.

What should a consultant recommend?
A . Use personalization strings created by selecting the data extension.
B. Use AMPscript variables created from each field in the data extension.
C. Use Dynamic Content rules to select a content area for each subscriber.
D. Use Guide Template Language created for each field in the data extension.

Answer: B