Which of the following pairs of tools will be needed to ensure no other instances of the software are currently running?

A Linux user reports that an application will not open and gives the error. Only one instance of the application may run at one time. A root administrator logs on to the device and opens a terminal. Which of the following pairs of tools will be needed to ensure no other instances of the software are currently running?
A. pad and chmod
B. sudo and vi
C. ls and chown
D. ps and kill
E. cp and rm

CompTIA A+ 220-1102 (Core 1) Exam

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