Question

read the excerpt from fast food nation. the labor practices of the fast food industry have their origins in the assembly line systems adopted by american manufacturers in the early twentieth century. business historian alfred d. chandler has argued that a high rate of \throughput\ was the most important aspect of these mass production systems. a factorys throughput is the speed and volume of its flow—a much more crucial measurement, according to chandler, than the number of workers it employs or the value of its machinery. which of the following choices best describes the evidence used in this excerpt? an experts opinion provides historical background of an important concept an experts viewpoint presents a counterclaim to the authors argument statistical and factual evidence prove the authors claim. personal experience creates persuasive, emotional appeal

Explanation:

The excerpt mentions Business historian Alfred D. Chandler's argument about "throughput" in mass production systems. This is an expert's opinion. The text uses this opinion to provide historical background (origins in early - twentieth - century assembly line systems) about the important concept of throughput in the fast - food industry's labor practices. There is no counter - claim (as it aligns with the author's discussion of labor practices' origins), no statistical/factual evidence (like numbers or data tables), and no personal experience (no "I" statements about personal events).

Answer:

An expert's opinion provides historical background of an important concept.