Final answer:
In computing, pricing for data storage and backup services often depends on the total amount of storage a user requires, with higher costs for more storage space. So, the answer is none of them.
Step-by-step explanation:
The question "Pricing is determined based on the amount of total storage available on a protected machine" refers to the common practice in the computing industry, specifically in the context of data storage and backup services.
In many cases, service providers will set pricing tiers based on the amount of digital storage space that a user requires for backing up and securing data from their computer or server.
The more storage space a customer needs, the higher the price they are likely to pay.
This pricing model takes into account the cost to the service provider of maintaining larger quantities of storage and ensuring the security and integrity of that data.
So, the answer is none of them.