What Is the Average Lateness of These Seven Jobs If

Multiple Choice

What is the average lateness of these seven jobs if they are scheduled using the earliest due date criterion? $$\begin{array} { | c | c | c | } \hline \text { Job } & \text { Process Time } & \text { Due Date } \\\hline \text { Job 1 } & 15 & 23 \\\hline \text { Job 2 } & 7 & 15 \\\hline \text { Job 3 } & 12 & 34 \\\hline \text { Job 4 } & 8 & 16 \\\hline \text { Job 5 } & 11 & 27 \\\hline \text { Job 6 } & 10 & 19 \\\hline \text { Job 7 } & 13 & 28 \\\hline\end{array}$$

A) 19.2
B) 18.7
C) 17.8
D) 16.5