What is included in the burger setup?

The burger setup typically refers to the standard toppings and condiments that accompany a burger, enhancing its flavor and texture. The correct choice includes shredded lettuce, pickles, sliced red onions, and sliced tomatoes, which are classic components that add freshness, crunch, and flavor balance to the burger. Each item contributes to a well-rounded eating experience: the lettuce provides a crisp texture, pickles add a tangy bite, sliced red onions offer sharpness, and sliced tomatoes contribute juiciness.

Other options might include ingredients or condiments that can be offered with a burger but do not represent the standard foundational setup. For instance, sliced jalapeños can be considered a spicy addition rather than a staple, while mayonnaise and mustard, or ketchup and relish, serve as condiment choices rather than the essential toppings that form the base of the burger assembly. Thus, option B accurately captures the traditional elements that constitute the burger setup.