5.11. A community college that recently acquired a parcel of land is now preparing site plans. There is interest in locating academic departments in each of six buildings along a mall with three buildings on each side. Based on registration patterns, the daily flow of students between these six departments in hundreds is shown below.

A B C D E F A. Psychology — 6 4 8 7 1 B. English 6 — 2 3 9 5 C. Mathematics 6 1 — 12 2 4 D. Economics 3 2 10 — 3 5 E. History 7 11 2 1 — 6 F. Biology 6 2 8 10 3 —

Using the initial layout below, perform an operations sequence analysis to determine a site plan for the community college that will minimize the distance that students need to walk between classes.