Which topping consists of small pieces of crispy cooked pork?

The topping that consists of small pieces of crispy cooked pork is bacon bits potato topping. This topping features bits of bacon that have been cooked until they are crispy, adding a savory and crunchy texture to dishes, particularly potatoes. Bacon bits are commonly used to enhance the flavor of various menu items, making them more indulgent and appealing to customers who enjoy the taste of bacon.

In contrast, the other options do not include any pork products. Chives provide a fresh, mild onion flavor, while butter and sour cream add richness and creaminess to potatoes, but neither contains any meat or crispy elements. Thus, bacon bits is the only choice that aligns with the description of small pieces of crispy cooked pork.