You are a project manager who works for a nationwide bank with branches in every major city in the country. You are developing a new app for the bank using the XP agile methodology and will deliver business value in each iteration. The programmers on the team are collocated in the same workspace and rely heavily on feedback from the customers. Which of the following provides significant feedback to the team in XP? This type of question contains radio buttons and checkboxes for selection of options. Use Tab for navigation and Enter or space to select the option. option A Test-driven development option B Refactoring option C Pair programming option D Story cards