In Route 53, what does a Hosted Zone refer to?

In Route 53, what does a Hosted Zone refer to?
A . A hosted zone is a collection of geographical load balancing rules for Route 53.
B . A hosted zone is a collection of resource record sets hosted by Route 53.
C . A hosted zone is a selection of specific resource record sets hosted by CloudFront for distribution to Route 53.
D . A hosted zone is the Edge Location that hosts the Route 53 records for a user.

Answer: B

Explanation:

A Hosted Zone refers to a selection of resource record sets hosted by Route 53.

Reference: http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/AboutHostedZones.html