What is a conventional supermarket known for offering?

A conventional supermarket is primarily distinguished by its wide range of offerings, which typically includes a large variety of groceries such as fresh produce, dairy, baked goods, canned and packaged foods, meats, and frozen goods. In addition to food items, these supermarkets also provide some general merchandise like household products, personal care items, and even basic clothing or home goods. This extensive selection is designed to cater to the everyday needs of consumers, providing a one-stop shopping experience.

In contrast, the other options do not accurately reflect what a conventional supermarket offers. Focusing solely on nonfood items would not encapsulate the essence of a supermarket, as food items are a core focus. Exclusively high-end products are characteristic of specialty stores rather than supermarkets, which aim to appeal to a broader audience with a diverse range of prices and products. Furthermore, limiting offerings solely to specialty food items fails to recognize the vital role of staple grocery items that supermarkets predominantly provide. Thus, the correct answer highlights the conventional supermarket's strength in offering a comprehensive selection of groceries along with some general merchandise.