A characteristic of IaaS

Question:
Which is a characteristic of cloud infrastructure as a service model?

1. No supporting services provided by IaaS
2. Data can only be stored on physical machines in the network
3. Users can access networking resources on the cloud through virtualization
4. End users interact directly with the physical infrastructure

Answer:
C - is the correct answer. Users get access to networking resources on the cloud through virtualization or programmatically through APIs