Answer: e) All of the above are service of cloud computing
Explanation: Cloud computing is the service that works on the basis of the internet technology. The concept included in cloud computing is software-as-a-service(SaaS) that is used for hosting the application by any third party and provide it to the user in the form of service.
Platform-as-a-service(PaaS) is where the third party provides the tool to the user for development of application . IaaS(infrastructure-as-a-service) is the service where the third party provides virtualized resources of computing to the user.
Data storage-as-a-service is also a cloud computing concept that provides the service where the data of the customers or users are managed and executed over network.Thus, the correct option is option(e).