Where are the customers objects replicated?

A customer is leveraging Amazon Simple Storage Service in eu-west-1 to store static content for a web-based
property. The customer is storing objects using the Standard Storage class. Where are the customers objects
replicated?

A.
A single facility in eu-west-1 and a single facility in eu-central-1

B.
A single facility in eu-west-1 and a single facility in us-east-1

C.
Multiple facilities in eu-west-1

D.
A single facility in eu-west-1