B. Proprietary APIs (Application Program Interface) for security is not an is not an objective of Cloud design. A cloud Proprietary or provider API is an application program interface that allows the end user to interact with a cloud provider\'s service. Cloud provider APIs support Hypertext Transfer Protocol (HTTP) and HTTP over SSL (Secure Sockets Layer ) (HTTPS) communication protocols and have authentication mechanisms to ensure that only authorized requests can be made to the provider\'s system. Many cloud providers have their own proprietary API which can make it difficult for a cloud customer to change from one provider’s service to another’s. To make it easier to get new customers, some cloud providers are offering a cross-platform cloud API. A cross-platform cloud API provides a higher level of abstraction by translating a specific cloud provider\'s API calls into a more standards-based generic form. This provides the cloud customer with the ability to use a single API call to access cloud resources on more than one provider\'s cloud computing platform. Answers is B. Expiation about the remaining options Objectives of Cloud design a) Service provisioning for efficient and quality services This QoS (Quality of Service) of cloud computing must be standardized to make clouds interoperable among multiple providers. c) Scalability in performance The cloud platforms and software and infrastructure services must be able to scale in performance as the number of users increases. d) Shifting computing from desktops to data centers Shifting Computing From Desktops To Data Centers Computer processing, storage, and software delivery is shifted away from desktops and local servers and toward data centers over the internet. Solution B. Proprietary APIs (Application Program Interface) for security is not an is not an objective of Cloud design. A cloud Proprietary or provider API is an application program interface that allows the end user to interact with a cloud provider\'s service. Cloud provider APIs support Hypertext Transfer Protocol (HTTP) and HTTP over SSL (Secure Sockets Layer ) (HTTPS) communication protocols and have authentication mechanisms to ensure that only authorized requests can be made to the provider\'s system. Many cloud providers have their own proprietary API which can make it difficult for a cloud customer to change from one provider’s service to another’s. To make it easier to get new customers, some cloud providers are offering a cross-platform cloud API. A cross-platform cloud API provides a higher level of abstraction by translating a specific cloud provider\'s API calls into a more standards-based generic form. This provides the cloud customer with the ability to use a single API call to access cloud resources on more than one provider\'s cloud computing platform. Answers is B. Expiation about the remaining options Objectives of Cloud design a) Service provisioning for efficient and quality services This QoS (Quality of S.