The IT director wanted to design a system that captures every transactions of business. The director identified the data that should be collected as follows:

Order date, Order dollars amount and quantity per item, Order shipment date, shipment class, shipment address information and finally the name of the customer.

What is missing?

a$.$

Product category, name of the product, order ID$,$ profit, customer ID$,$ order number

b$.$

Location of the customer and the product ID

c$.$

Profit per item, discount and location of the business

d$.$

Nothing is missing!