Which type of real estate primarily relates to non-residential uses?

Commercial real estate is the correct answer because it specifically refers to properties that are used for business purposes rather than residential living. This category encompasses a wide variety of property types, including office buildings, retail spaces, warehouses, and industrial facilities. The primary characteristic of commercial real estate is that it is intended for profit-generating activities, making it distinct from other property types.

In contrast, multi-family residential properties, such as apartment complexes, are designed primarily for people to live in, and while they can generate income, their primary use is residential. Agricultural land is focused on farming and related activities, hence associated with agricultural use rather than commercial profit. Vacant land can serve various purposes, including future development or investment, but it does not specifically indicate non-residential use like commercial real estate does. Therefore, the distinct purpose and functionality of commercial real estate clearly categorize it as relating predominantly to non-residential uses.