Suppose the total number of minutes provided exceeds the total number of minutes estimated and that the total dollar cost of the minutes provided exceeds the budgeted cost of estimated minutes. This outcome is most likely to be a function of:
A. technicians being less competent than anticipated at their level
B. technicians being more competent than anticipated at their level
C. in at least one of the higher technical levels, more minutes being provided than budgeted
D. in at least one of the higher technical levels, fewer minutes being provided than budgeted