You are developing an application that will perform mathematical calculations.You need to ensure that the application is able to perform multiple calculations simultaneously. What should you do？（）

• A、Set the IdealProcessor property of the ProcessThread object.
• B、Set the ProcessorAffinity property of the ProcessThread object.
• C、For each calculation， call the QueueUserWorkItem method of the ThreadPool class.
• D、Set the Process.GetCurrentProcess（）.BasePriority property to High.