What is the core concept discussed in relation to the fast-food industry's labor practices?

The core concept discussed regarding the fast-food industry's labor practices emphasizes that the industry is fundamentally built on the mass production idea of "throughput." This concept refers to the efficiency and speed with which products are produced and delivered, reflecting a systematic approach to maximizing output while minimizing costs. The fast-food model is designed for rapid service, standardization of food products, and consistency across locations, which all hinge on the principles of throughput.

This approach heavily influences labor practices by necessitating a workforce that can operate quickly and efficiently in a highly structured environment. By promoting a model that prioritizes speed and volume, the fast-food industry can achieve economies of scale that are critical to its business success. The focus on throughput shapes not only operational strategies but also employment practices, where workers are often subjected to high work intensity and low job security—all designed to maintain constant production flow.

While technology and productivity are relevant aspects of the discussion, and while labor is a component of the equation, the overarching theme remains that the fast-food business model is rooted in the concept of mass production, making option B the most representative of the core idea being discussed.