Which two approaches must be part of the design considerations?

An enterprise refactors its monolithic application into a modem cloud-native application that is based on microservices. A key requirement of the application design is to ensure that the IT team is aware of performance issues or bottlenecks in the new application.

Which two approaches must be part of the design considerations? (Choose two)
A . Periodically scale up the resources of the host machines when the application starts to experience high loads
B. Instrument the application code to gather telemetry data from logs, metrics or tracing
C. Adopt a service-oriented architecture to handle communication between the services that make up the application
D. Deploy infrastructure monitoring agents into the operating system of the host machines
E. Implement infrastructure monitoring to ensure that pipeline components interoperate smoothly and reliably

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Answer: B,E