You want to replace multiple copies of data, at variable levels of granularity, with references to a shared copy to save storage space and/or bandwidth.
Which data reduction method would satisfy the requirement?

A.
deduplication

B.
compression

C.
thin provisioning

D.
conditioning

Explanation:
Reference: https://www.eiseverywhere.com/
file_uploads/2a01629a9c3787a3872acb8714a4e417_Monday_1110_TomSas.pdf (slide 6)