Explanation: In private cloud, the cloud infrastructure is operated exclusively for an organization. The private cloud infrastructure is administered by the organization or a third party, and exists on premise and off premise. In community cloud, the cloud infrastructure is shared by a number of organizations and supports a particular community. The community cloud infrastructure is administered by the organizations or a third party and exists on premise or off premise. Answer: B is incorrect. In public cloud, the cloud infrastructure is administered by an organization that sells cloud services. Answer: C is incorrect. In hybrid cloud, the cloud infrastructure is administered by both, i.e., an organization and a third party.