You plan to use the Azure Speech service to convert text to speech and output it to an audio file. Given that the prerequisites are met, Speech SDK is installed and required packages are included. Sequence the steps involved in creating the Speech configuration by putting them in the correct order. Step 1: Instantiate SpeechSynthesizer.
Step 2: Create an AudioConfig to write output to an audio file.
Step 3: Create a SpeechConfig using the subscription key and associated Azure region.
Step 4: Execute Speech synthesis using the text.
 

Answer options:

A.Step 3 -> Step 2 -> Step 1 -> Step 4
B.Step 2 -> Step 1 -> Step 3 -> Step 4
C.Step 4 -> Step 1 -> Step 2 -> Step 3
D.Step 1 -> Step 2 -> Step 3 -> Step 4

Correct Answer: A
Option A is correct. The correct order for execution steps is:
Create a SpeechConfig using the subscription key and associated Azure region.
Create an AudioConfig to write output to an audio file.
Instantiate SpeechSynthesizer.
Execute Speech synthesis using the text.
Option B is incorrect because SpeechSynthesizer requires AudioConfig and SpeechConfig. Hence SpeechConfig needs to be created before instantiating SpeechSynthesizer.
Option C is incorrect because executing Speech synthesis would require SpeechSynthesizer to be instantiated first, which requires AudioConfig and SpeechConfig. Hence this is not the correct order.
Option D is incorrect because SpeechSynthesizer requires AudioConfig and SpeechConfig. Hence SpeechConfig needs to be created before instantiating SpeechSynthesizer.
Reference:
To learn more about synthesizing speech to a file, use the link given below: 

https://docs.microsoft.com/en-us/azure/cognitive-services/speech-service/get-started-text-to-speech?tabs=script%2Cwindowsinstall&pivots=programming-language-csharp