Using your custom vision service, you plan to create an object detector model. Using the custom vision client libraries, you create a custom vision project, add tags to the project, upload the images and tag them and train the project in your active Azure subscription. Next you plan to publish the current iteration. Review the method call given below and complete it by choosing the appropriate parameters: 
<pre class="brush:java;">private void PublishIteration(..............................................................., Project project)
</pre> 

Answer options:

A.CustomVisionTrainingClient predictionApi
B.CustomVisionPredictionClient predictionApi
C.CustomVisionTrainingClient trainingApi
D.CustomVisionPredictionClient trainingApi

Correct Answer: C 
Here is the complete method call to publish the current iteration 
<pre class="brush:java;">private void PublishIteration(CustomVisionTrainingClient trainingApi, Project project)</pre>Given the completed method call in the explanation above,
Option A is incorrect.
Given the completed method call in the explanation above, Option B is incorrect. CustomVisionPredictionClient predictionApi is used in the method call to test the current iteration.
Given the completed method call in the explanation above, Option C is correct. For creation, training and publishing, use client CustomVisionTrainingClient. You need to provide trainingApi for publishing the iteration.
Given the completed method call in the explanation above, Option D is incorrect.
Reference:
To learn more about object detection using custom vision, use the link given below: 

https://docs.microsoft.com/en-in/azure/cognitive-services/custom-vision-service/quickstarts/object-detection?tabs=visual-studio&pivots=programming-language-csharp