Answer:
d. Text(100)
Explanation:
The data extensions can be defined as the table with the fields of the data about contacts. It can be related to some other data extensions or can be a standalone.
In the context, the Northern Trail Outfitters stores the Last Name in the data extension which is defined as a text file as Text(100).
Choosing a proper field length and a data type ensures an efficient storage as well as retrieval of the data in the data extensions.
