How should they configure their entry source?

Northern Trail Outfitters is using Journey Builder to send emails to loyalty members based on recent activity. They anticipate that approximately half of their contacts will meet the entry criteria for their journey.

How should they configure their entry source?
A . Use an Import Activity in Automation studio to filter the data as a Data Extension Entry Source.
B. Use a Query Activity in Automation Studio to create a segment before entering the journey.
C. Use a Contact Data Entry Source to segment the data configured in Attribute Groups in Contact Builder.
D. Use a Data Extension Entry Source with an applied filter based on recent member activity.

Answer: B