The user has a conversation with your bot in Azure. You have a requirement to track the name of the user, context of the conversation and preferences of the user. This way your bot does not have to ask for the information again. You use state management for reading and writing your bot’s state. You also bucket the state properties into user state, conversation state and private conversation state to categorize how that information is stored. You use blob storage at the storage layer for storing the information. 
Given the scenario above, select the ID fields required to create a key for user state, that turn context would use [choose two options].

Answer options:

A.Activity.ChannelId
B.Activity.From.Id
C.Activity.Conversation.Id
D.None of the above

Correct Answers: A and B
Option A is correct because “Channel ID” and “from ID” are required for creating a key with the user state.
Option B is correct because “Channel ID” and “from ID” are required for creating a key with the user state.
Option C is incorrect because “Conversation ID” is required in conversate state and private conversation state.
Reference:
To learn more about the state in a Bot framework, use the link given below: 

https://docs.microsoft.com/en-us/azure/bot-service/bot-builder-concept-state?view=azure-bot-service-4.0