C. Rightsizing Finding the best instance sizes and types to meet capacity and performance requirements while minimizing costs is known as rightsizing. By ensuring that resources are neither too or underutilized, this procedure helps to satisfy workload demands while keeping costs to a minimum. I also read this question in authentic questions guide by itexamshub

C. Rightsizing Rightsizing involves finding the most suitable instance types and sizes to match performance and capacity requirements while optimizing costs. This process ensures that resources are neither underutilized nor over-provisioned, helping to minimize expenses while meeting workload demands.

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