During discovery, the customer outlines data requirements and the anticipated use of Marketing Cloud with the following criteria:
* Customer data will be fully refreshed every night via Import activity from the customer's data warehouse.
* Contact records will be augmented by relational data tables via Contact Builder.
* The customer data file will contain 5M records with 40+ attributes.
* One attribute will house HTML code, 1000 characters max, that will be used to populate Account Access content areas in emails.
* A customer ID will be used as the unique identifier for each contact.
Which statement differentiates the use of data extensions over lists?