Point out the correct statement.
(a) Use of different machine instance sizes is an attempt to create standard servers
(b) Reducing the variability between servers makes it easier to troubleshoot problems and simpler to deploy and configure new systems
(c) A server with the same set of software, system configuration, and hardware should perform similarly if given the same role in an infrastructure
(d) All of the mentioned
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This key question is from Server and Instance types topic in division Abstraction and Virtualization Layer and Capacity Planning of Cloud Computing