Question Number 3. a. The need of maintaining appropriate level of inventory is a paradox that describes inventory as a "necessary-evil. " Explain with your logic why is inventory a "necessary- evil. " What are the different kinds of inventories? (3+12=15 marks) b. Based on the ABC analysis system of inventory items, classify the following data into A, B, and C categories: (10 marks) Item number 001 002 003 004 005 006 007 008 009 010 Unit cost ($) 6 11 15 8 7 15 19 5 9 12 Annual demand 46000 2200 300 800 4800 1200 17500 300 5100 500