Question 2: [ 1/3 Marks You are the project manager of a project named My bill, a billing system that simplifies complex billing tasks, you are asked to design and code the system's basic features, which include: -Billing calculations: automatically calculate billing charges taking into account plans, add-ons, prorations, discounts, coupons, and taxes. - Invoicing: customize invoices, check invoice status, and perform invoice operations like adding credits, refund etc. based on customer requests. - Multiple payment: allows your customers to choose of different payment options like credit card, direct debit and more. - Payment reminder: Sends payment reminders to customers when payment is due and also configure action to be taken when the customer fails to pay. a- How will the project be carried out if you follow the incremental model? [1.5 marks] b- How will the project be carried out if you follow the iterative model? [1.5 marks]