B From Chat GPT
B. Application virtualization
In this scenario, where the technician wants to deploy an .msi package to a corporate network without affecting other legacy applications on end users' computers, the most appropriate option is "Application virtualization."
Application virtualization allows you to run applications in isolated environments, ensuring that they do not interfere with other applications or the underlying operating system. It separates the application from the local system, so it doesn't leave behind files or registry changes that can impact other software. This approach is often used in enterprise environments to maintain compatibility and minimize conflicts between different applications.
The other options, such as virtual network, cross-platform virtualization, virtual sandbox, and virtual desktop, are not directly related to isolating and deploying individual applications while ensuring they do not affect other applications on users' computers.