In what type of construction would an inverted girder likely be used?

An inverted girder is typically used in constructions where it is advantageous to have structural elements aligned in a way that allows for maximum space and movement. In factory buildings, for example, there are often high ceilings and large open areas required for machinery, equipment, and workflow. By using inverted girders, the structural support can be placed in a way that minimizes obstruction in the space below, allowing for more flexibility in layout and use of the interior.

Additionally, factory buildings usually need to support heavy loads and allow for potential crane operations, which can be facilitated by the design of inverted girders. This construction technique not only optimizes the structural integrity but also enhances the functionality of industrial spaces, making it the most appropriate choice among the provided options. The other choices, while they may have their own structural considerations, do not typically require the same level of load-bearing and space optimization that an inverted girder provides in a factory setting.