Which of the following treats was invented in West Virginia?

The invention of pepperoni rolls is a significant part of West Virginia's culinary history. This treat was created in the 1920s by Italian miners who needed a portable and easy-to-eat meal while working in the coal mines. The rolls consist of soft bread stuffed with pepperoni, which would provide the miners with a hearty and satisfying meal that could withstand the rigors of their labor. The creation of pepperoni rolls reflects the immigrant influences on the region's food traditions, and they have since become a popular snack throughout West Virginia and beyond, often celebrated at local festivals and events.

In contrast, while potato chips, cornbread, and apple butter have their own histories and regional ties, they are not specifically associated with West Virginia in the way that pepperoni rolls are. The story of pepperoni rolls is uniquely tied to the state's culture and the experiences of its people, making it an iconic food item representative of West Virginia.