Which of the following is not a basic runway configuration?

In the context of basic runway configurations, the correct choice identifies a type of layout that does not fit the standard definitions used in aviation.

Open V, Parallel, and Intersecting are all recognized configurations that serve specific operational needs at airports.

Open V configurations consist of two runways diverging outward from a common point, which is useful in accommodating air traffic while minimizing potential conflicts. Parallel runways allow for simultaneous takeoffs and landings, thereby increasing airport capacity and efficiency. Intersecting runways enable cross-use of airspace but can create challenges in traffic management due to the need for coordination during operations to avoid collisions.

The term Transfer does not correspond to a recognized basic runway configuration. Instead, it might refer to a concept or operational strategy related to runway use, but it does not describe a physical layout of runways as the other options do. Thus, it is correctly identified as the answer that does not belong among the basic runway configurations.