In the Formula for Calculating the Average Waiting Time, the Squared

In the formula for calculating the average waiting time, the squared manufacturing time indicates ________.

A) that the shorter the manufacturing time, the greater the chance that the machine will remain idle in the process
B) that the shorter the manufacturing time, the greater the chance that the machine will be in use when an order arrives
C) the disproportionately large impact the manufacturing time has on the waiting time
D) a measure of the unused capacity or cushion