Virtualization is environmentally friendly because which of the following?

While virtualization can reduce operational costs in the long run, its initial implementation can be costly, and cost is not the primary reason it's considered environmentally friendly.

Ease of maintenance is an operational benefit of virtualization but does not directly contribute to environmental friendliness in terms of energy or resource reduction.

Individual virtual servers do not generate heat; only the underlying physical server hardware generates heat. The benefit is fewer physical servers generate less overall heat.

Virtualization allows multiple virtual machines to run on a single physical server, significantly reducing the number of physical servers required in a data center. Fewer physical servers mean less electricity consumed for operation and cooling, directly leading to a reduction in overall energy consumption.