What does the presence of assignable variation indicate about a system? a. that the system is running smoothly and efficiently b. that natural variation is not present in the system c. that natural variation is also present in the system d. that a problem is emerging somewhere within the system

Kiesha has a worksheet with a range of cells using the following columns: name, score, group, study group, and date. kiesha needs to sort the worksheet on the date field. which option she use to most efficiently complete this task ? a use the cut and paste option to reorganize the data to fit that order b use the filter function to organize the data based on the date c use the order function to organize the data based on the date d use the sort function to organize the data based on date order