A customer has several values that need to be used in the body of an email send.

A customer has several values that need to be used in the body of an email send.

* The data would be stored in a reference data extension, related on SubscriberKey

* There may be one or more records for each subscriber

* The audience is generally over 1 million subscribers

* The content is time sensitive and should be sent as quickly as possible

* The customer is not using "Catch and release" sending

* The reference data extension contains 25 columns

What method should be used
A . AMPScript a single LookupOrderRows function
B. Dynamic content via the Dynamic content wizard
C. Server side JavaScript a single LookupOrderedRows function
D. AMPScript a single lookup function