In HUAWEI CLOUD latency refers to the time it takes for a call to initiate a request to obtain a response. In APM, the overall delay refers to the total time spent on the entire request, and the service delay refers to the time spent on a single service, that is, the overall time consumption minus the time spent calling other installation probe services. There are services A. B, C A calls B

, and B calls C. What are the correct items for the following description of the delay of each service? Multiple selection