Chen is a freelance web developer who uses a Windows $10$ computer. When she needs to test her web application on a different operating system, she sends it to her friend who has other operating systems installed on multiple devices. This is a time$-$consuming process. She$$s looking for a way to test the web application across different operating systems on her own computer.

Which of the following features should she use?

a$.$ Journaling

b$.$ Virtualization

c$.$ Sandboxing

d$.$ Deduplication