Which programming environment is commonly used for Extron control systems?

The choice of GlobalConfig as the correct answer highlights its specific usage in Extron control systems. GlobalConfig is a proprietary programming and configuration tool developed by Extron that allows professionals to set up and manage control systems efficiently. It provides an interface for customizing system behavior, including device communication, user interfaces, and other functionalities crucial for AV control systems.

Unlike the other options, which serve different purposes or industries, GlobalConfig is designed explicitly for Extron's products. Visual Studio is primarily a development environment for software applications and does not cater specifically to AV control setups. AutoCAD is focused on drafting and design, making it unrelated to control system programming. LabVIEW is oriented towards data acquisition and instrumentation, not specifically for AV control configurations. Hence, GlobalConfig stands out as the dedicated solution for programming Extron control systems, making it the correct answer.