What is an advantage of deploying a purpose-built, disk-based backup appliance in a data center environment?

What is an advantage of deploying a purpose-built, disk-based backup appliance in a data center environment?
A . Eliminate the need for performing source-based deduplication.
B . Convert the capital expenditure to an operational expenditure.
C . Lower the recovery time objective of an organization.
D . Retain the fixed content for longer periods in the data center.

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Answer: C