2. The following figure describe the specification of rental payment function for tenant. Answer all questions below based on the specifications. For tenants who rent the storage unit, 10% discount will be given if he pay his bills within 30 days. If he pay between 10 days after that, there will be no surcharge or discount will be applied. For the following days after that, 1% surcharge will be applied for each day late. The corresponding percentages for a tenant who rent business unit are 15%, 0 and 2%. Figure 1: Specification of rental payment function. i. Construct a decision table for the business logic in Figure 1. [8 marks] ii. Derive test cases from the decision table answer in 2(i). [12 marks]