Answer:
The word or phrase that best completes the analogy is "land."
The analogy can be understood as follows:
A restaurant is a type of establishment or place where people go to eat and dine. Similarly, a yard is a specific type of area or space, typically adjacent to a house, that is used for various outdoor activities or purposes, such as gardening, playing, or relaxing.
In this analogy, the relationship between "restaurant" and "terrain" is that a restaurant is a specific type of place or establishment, just as "terrain" is a specific type of land or area. Therefore, the best completion for the analogy would be "land," as it is the general term that encompasses different types of terrain or areas, including yards.