When Customers Who Regularly Submit Long Orders Are Discriminated Against

Multiple Choice

When customers who regularly submit long orders are discriminated against by the shortest processing rule,what is the appropriate step that can be taken at the discretion of those doing the sequencing?

A) Use the priority ratio dividing ti by wi.
B) Eliminate SPT;assign jobs according to a manager's importance rating of customers.
C) Use a special checkout counter for less than 10 items,or the equivalent for the manufacturing firm.
D) Use FIFO for important customers.