B$.$ An air aviation company has various departments and sub$-$divisions. Their systems run on multiple types of operating systems. There has been a breach that affected their network, after analysis, they discovered two significant depertments are down. One process deals with traffic control and signal analysis of airplanes, while the second process deals with payroll system for the entire company. These two processes use different types of operating systems. How would your knowledge of operating system types help you to prioritize which department to bring up first? Explain your answer in detail.

$20$ Marks