What statements are accurate regarding Attribute Groups?

Northern Trail Outfitters (NTO) is considering adopting Attribute Groups when incorporating data from their external systems.

What statements are accurate regarding Attribute Groups? Choose 2 answers
A . They can contain only one data extension.
B . They can be created by templates to accomplish certain tasks.
C . They link data extensions to other data extensions or contacts.
D . They replicate the structure from the external system data into templates.

Answer: B,C