After reading the video transcript we can say Dr. X is convincing because he supports his explanation with facts, as stated in option B and explained below.
In the video "Dr. X and the Quest for Food Safety," Dr. X is effective at communicating the dangers of cross contamination. The reason for that is the fact that he supports his explanation with facts, that is, he provides evidence that proves his explanation right.
With the information above in mind, we can say Dr. X is convincing when he talks about how bacteria function and what can be done to prevent contamination. Option B is the correct answer.
The complete question with the answer choices can be found attached.
Learn more about food safety here:
https://brainly.com/question/934835
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