Lucien, a team leader for a systems development project, is presenting a progress update on the topic of system operation and maintenance at one of his regular meetings with system users from the business side. A participant from the business side raises his hand and asks, "What is systems review?" Lucien explains systems review as which of the following? Select all that apply. the process of analyzing systems to make sure they are operating as intended O a comparison of the performance and benefits of the system because it was designed with the actual performance and benefits of the system while it is operating a process-driven approach measured by the number of errors encountered measured by the amount of memory required measured by the amount of processing or CPU time needed something that may be performed by internal employees or external consultants involving IS, not mission-critical, systems involving monitoring, or measuring, the performance of the system