The correct option is an option (c), i.e., convoy effect
What is meant by Convoy Effect?
The Convoy Effect is a phenomenon when a few slower system operations cause the entire Operating System to sluggish down. The FCFS method ensures that other processes only receive CPU time when the current one is done when CPU time is allocated to a process.
What is the reason of Convoy Effect in FCFS algorithm?
Being non-preemptive by nature, the FCFS algorithm only allows for the allocation of CPU time to subsequent processes once the current process has been completed. Convoy Effect occurs as a result of this FCFS scheduling characteristic.
Learn more about FCFS algorithm: https://brainly.com/question/14310853
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