Question: $16$

I need step by step answer for my better understanding

Which of the following is a non$-$preemptive scheduling algorithm?

A$.$ Round$-$Robin $($RR$)$

B$.$ Shortest Remaining Time First $($SRTF$)$

C$.$ Priority Scheduling

D$.$ First$-$Come, First$-$Served $($FCFS$)$

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