Would the below applications be suitable for a queue or a stack and why? 1. An ailing company wants to evaluate employee records so as to lay off some worker on the basis of service time (the most recently hired employees are laid off first). 2. A program is to keep track of patients as they check into a clinic, assigning them to doctors on a first come, first served basis. 3. A program to solve a maze is to backtrack to an earlier position (the last place where a choice was made) when a dead-end position is reached. 4. An inventory of parts is to be processed by part number. 5. An operating system is to process requests for computer resources by allocating the resources in the order in which they are requested.