Which type of map would have the largest scale?

The correct answer is City map.
Large scale map show a small amount of area with a great amount of detail. The geographic extent shown on a large scale map is small. They are mostly used to show cities, localized area and small towns. The area on the map has been scaled to a larger extent. A large scale map might be on a scale of 1: 1000

Small scale maps show large amount of area with little amount of detail (show large areas of land on a small space). Examples are world maps, continent maps and country maps. The area on the map has been scaled down less. A small scale map might be on a scale of 1: 100,000,000.