You plan to export your custom vision classifier in Azure and use it in your application to run locally on the mobile devices for real time classification. You use compact domains for this export. Assuming that you are using platform ONNX to export to and format as ONNX10, review the code below and complete it by choosing the most appropriate answer choice. 
project_id = "<Project Id>" 
iteration_id = "Iteration Id" 
platform = "ONNX" 
flavor = "ONNX10" 
export = trainer.……………………………...(project_id, iteration_id, platform, flavor, raw=False

Answer options:

A.export_project
B.export_iteration
C.update_project
D.update_iteration

Correct Answer: B
Option A is incorrect because export_project exports a project. However the requirement is to export a model iteration.
Option B is correct because export_iteration is used for exporting a trained model iteration. Here is the completed code:
project_id = "<Project Id>" 
iteration_id = "Iteration Id" 
platform = "ONNX" 
flavor = "ONNX10" 
export = trainer.export_iteration(project_id, iteration_id, platform, flavor, raw=False) Option C is incorrect because update_project is used to update an existing project.
Option D is incorrect because update_iteration is used to update an existing iteration. However, the requirement is to export it.
Reference:
To learn more about exporting a model in a custom vision service to use it on mobile devices, use the link given below: 

https://docs.microsoft.com/en-us/azure/cognitive-services/custom-vision-service/export-programmatically