Which of the following best describes the purpose of a design specification a. tracking erros that arise through user testing
b. documenting comments that will need to be added to a program
c. describing the requirements for how a program will work or users will interact with it
d. listing detailed questions that will be asked of users during interviews

Bigmart supermarket has different ways of awarding discounts to its customers for each purchase they make. an 8 percent discount is given on the total value of the purchase. in addition, a standard loyalty discount is given if customers have a permanent customer id card. your program should indicate the amount payable by the customer after the discounts. identify the inputs that the program requires from these options: i. the discount percentage ii. the total value of the purchase iii. the loyalty-discount amount iv. the customer id card number v. the amount payable after discount