Internal business partnerships between supply and other functional areas such as marketing/sales, finance/accounting, and engineering are: Select one: O a. desirable because of the interdependencies between and among functions. O b. difficult to develop because supply has little impact on organizational goals. O c. unimportant because one area has no impact on the others. d. easily developed because all functional areas share goals and metrics. O e. not worth the time it takes to develop them