Which two tools should you install on a local computer?

You have a chatbot that was built by using the Microsoft Bot Framework. You need to debug the chatbot endpoint remotely.

Which two tools should you install on a local computer? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point. (Choose two.)
A . Fiddler
B . Bot Framework Composer
C . Bot Framework Emulator
D . Bot Framework CLI
E . ngrok
F . nginx

Answer: C,E

Explanation:

Bot Framework Emulator is a desktop application that allows bot developers to test and debug bots, either locally or remotely.

ngrok is a cross-platform application that "allows you to expose a web server running on your local machine to the internet." Essentially, what we’ll be doing is using ngrok to forward messages from external channels on the web directly to our local machine to allow debugging, as opposed to the standard messaging endpoint configured in the Azure portal.

Reference: https://docs.microsoft.com/en-us/azure/bot-service/bot-service-debug-emulator