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

Explanation:
Objects stored in a region never leave the region unless you explicitly transfer them to
another region. For example, objects stored in the EU (Ireland) region never leave it.
http://docs.aws.amazon.com/AmazonS3/latest/dev/Introduction.html#Regions