Briefing Amazon Knowledge

Which service or feature provides the fastest method of getting the data into Amazon Glacier?

You are working with a customer who has 10 TB of archival data that they want to migrate to Amazon Glacier.
The customer has a 1-Mbps connection to the Internet. Which service or feature provides the fastest method
of getting the data into Amazon Glacier?

A.
Amazon Glacier multipart upload

B.
AWS Storage Gateway

C.
VM Import/Export

D.
AWS Import/Export