The testimonial evidence in this excerpt is effective because it includes an expert opinion supporting the claim that the fast-food industry resembles the manufacturing business. Thus, the correct option is B.
<h3>What is Testimonial evidence?</h3>
Testimonial evidence may be defined as a type of evidence in which the observations of spectators are used as facts in a precise case.
According to testimonial evidence, it requires an observation that is suppoted or claimed by any observer. Hence, these criteria are fulfilled by only statement B.
Therefore, the correct option for this question is B.
To learn more about Testimonial evidence, refer to the link:
brainly.com/question/1256677
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