You are creating an XML Web service named Tracker to track orders for your company. Tracker includes a Web method named OrderStatus for tracking the status of individual orders. You anticipate that many client applications will use the service.You want administrators of Tracker to be able to monitor the requests per second for OrderStatus.Which code segment should you use?

A.Dim counter As New PerformanceCounter("Tracker_ "OrderStatus req/sec", False)

B.PerformanceCounterCategory.Create("Tracker","category", "OrderStatus req/sec", "req/sec”）C . Dim counterData() As CounterCreationData =_{New CounterCreationData("OrderStatus req/sec","help", PerformanceCounterType.RateOfCountsPerSecond32)} Dim collection As New_CounterCreationDataCollection(counterData) PerformanceCounterCategory.Create("Tracker", _"Tracker performance counters", collection)D. Dim counterData() As CounterCreationData =_{New CounterCreationData("Int32", "second",_PerformanceCounterType.AverageTimer32)}Dim collection As New_CounterCreationDataCollection(counterData) PerformanceCounterCategory.Create("OrderStatus", _ "requests per second", collection)}