The nice value determines the priority of the process. The higher the value, the lower the priority--the "nicer" the process is to other processes. The default nice value is 0 on Linux workstations
The nice command is used to launch a process with a modified scheduling priority, also known as the nice value. The nice value ranges from -20 to +19, with lower values indicating higher priority.
When the nice command is used without specifying a value, it assumes a default nice value of 0. This means that the process will have the same priority as the parent process or the shell from which it was launched.
While original nice value is 0, once you use the nice command, without stating desired nice value, it gets set to the default nice of 10.
Answer is B as you have used nice, not left it to the original nice value.
to update the nice value, one has to use renice command. You cannot use nice command again to change nice value of already running process. So I believe answer B is not correct.
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