What is the closest approximate cost of this replacement and recovery operation per year?

The change of a hard drive failure is once every three years. The cost to buy a new hard drive is $300. It will require 10 hours to restore the OS and software to the new hard disk. It will require a further 4 hours to restore the database from the last backup to the new hard disk. The recovery person earns $10/hour. Calculate the SLE, ARO, and ALE. Assume the EF = 1(100%).

What is the closest approximate cost of this replacement and recovery operation per year?
A . $1320
B . $440
C . $100
D . $146

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Answer: D