You only need to answer question C. Please don't copy other answers, I will report this behavior.

- If the annual income is between 30000 and 100000 and the credit score is less than 600 , then the interest rate is 6%, if the credit score is greater than or equal to 600 , then the interest rate is 5% - If the annual income greater than 100000 and the credit score is less than 600 , then the interest rate is 5%, if the credit score is greater than or equal to 600 , then the interest rate is 4% Program asked the user to enter the annual income and the credit score. Then, the program determines the interest rate. a) Identify equivalent classes for income and the credit score b) Develop test cases for weak normal equivalent partition testing c) Draw a graph that shows strong normal and strong robust test cases (similar to the one we have discussed in the class). How many test cases are needed if you are strong normal? How many test cases are needed if you are strong robust