A. Use the Bot FrameworkREST API attachment operations to send the user's voice and the Speech Service API to recognize intents.
B. Use the Direct line REST API to send the user's voice and the Speech Service API to recognize intents.
C. Use the Speech Service API to send the user's voice and the Bot Framework REST API conversation operations to recognize intents.
D. Use the Bot Framework REST API conversation operations to send the user's voice and the Speech Service API to recognize intents.
Explanation:
Scenario: Enable users to place an order for delivery or pickup by using their voice. You must develop a chatbot by using the Bot Builder SDK and Language Understanding Intelligence Service (LUIS). The chatbot must allow users to order food for pickup or delivery.
The Bot Framework REST APIs enable you to build bots that exchange messages with channels configured in the Bot Framework Portal, store and retrieve state data, and connect your own client applications to your bots. All Bot Framework services use industry-standard REST and JSON over HTTPS.
The Speech Service API is used to recognize intents.
References: https://docs.microsoft.com/en-us/azure/bot-service/rest-api/bot-framework-rest-connectorconcepts?view=azure-bot-service-4.0 https://docs.microsoft.com/en-us/azure/cognitive-services/speech-service/how-to-recognizeintents-from-speech-cpp