The development and application of mrp depended upon two developments (1) the recognition of the difference between independent and dependent demand, and (2): a. Computers
b. Development of the EOQ model
c. Inventory control systems
d. Blanket purchase ordersE. the internet

a. Computers

Explanation:

The MRP refers to the material requirement planning with respect to production, scheduling, controlling of an inventory. It works is to transform the master schedule to the detailed schedule in order to purchase the raw material.

It can be divided into two components i.e independent and dependent demand. The independent demand is held for the finished goods and the dependent demand is for the components

Now for developing the mrp depend upon the recognition between the dependent and independent demand and the second one is computer

answer; /// place the thermal compound between the heat sink and the microprocessor;