You have configured a job to run with the batch command, but apparently system utilization never drops as low as the default value. Which of the following commands can be used to set a custom value for the batch command?
a. Use the "nice" command with a numerical value to adjust the priority of the batch command.
b. Utilize the "at" command to schedule the batch job to run at a specific time when system utilization is typically lower.
c. Set the batch command with a custom priority using the "renice" command.
d. Adjust the system's scheduling priority for the batch command using the "chrt" command.