What is the main function of Virtualization Technologies in cloud computing?

Virtualization technologies play a pivotal role in cloud computing by enabling multiple functions that are essential for efficient and effective resource management. One of the main advantages of virtualization is cost reduction. By allowing multiple virtual machines to run on a single physical server, organizations can maximize their hardware utilization, leading to lower capital and operational expenses.

Increased flexibility is another critical function. Virtualization allows for the rapid deployment and management of resources, enabling organizations to adjust their infrastructure to meet changing demands quickly. This adaptability is vital in cloud environments where workloads can vary significantly.

Scalability is also a key feature of virtualization. It allows organizations to scale their resources up or down seamlessly based on their needs without requiring significant hardware changes. This dynamic ability to accommodate user demand ensures that resources are optimally allocated, promoting efficient use of infrastructure.

Since virtualization technology encompasses all these functions—cost reduction, increased flexibility, and scalability—it's accurate to affirm that its main function is represented by all of the above options.