A company offers discount or free shipping based on whether a customer is Type A or Type B. A credit check is also performed depending on the customer type and the amount of past or present orders. The detailed requirements are described below. Requirements If customer is Type A, then offer a 20% discount on next order. If customer is Type B, then offer free shipping. If the amount of current order is more than $2,000.00, then If customer is Type A, check the customer's credit record. If customer is Type B, and if any past order by this customer was more than $1,000.00, then do not check the customer's credit record: otherwise check the customer's credit record. (a) Use limited-entry decision-table based testing method with three conditions to derive all the test cases for testing a program based on these requirements. (b) Create a second table by removing rules that may be inconsistent, contradictory, or impossible. Show any "don't care" entries in the rules and also remove duplicate rules, if any. Important: To ensure consistency, you should show rules in columns and conditions and actions in rows. Conditions should be in the upper part of the table and actions in the lower part of the table