In what configuration of the BAK-14 would 20 support boxes be installed?

In the context of the BAK-14 system and its configuration for support boxes, the correct answer indicates that installable support boxes can accommodate runways with specific widths.

Support boxes are an integral part of the BAK-14, which is an aircraft arresting system designed to safely decelerate aircraft during landing. The availability of 20 support boxes corresponds to specific configurations that can effectively manage the dimensions and operational needs of the runway.

Choosing runways with a width of 200' or 300' is appropriate because these widths provide a sufficient area for the installation of the required number of support boxes. Each width offers a balance of runway size and operational safety while ensuring the necessary structural support is available for the arrestor system. This alignment is crucial for the safe and effective deployment of the BAK-14, thus allowing sufficient space for aircraft to engage the system properly.

The other configurations presented do not meet the necessary conditions for accommodating 20 support boxes effectively. The specific dimensions given in the correct answer reflect practical considerations for both the physical requirements of the BAK-14 system and the operational realities of aircraft recovery.