A software company is designing a mobile game system that should be able to recognize the faces of people who are playing the game and automatically load their profiles. Which of the following actions is most likely to reduce the possibility of bias in the system?
Testing the system with members of the software company’s staff
Testing the system with people of different ages, genders, and ethnicities
Testing the system to make sure that the rules of the game are clearly explained
Testing the system to make sure that players cannot create multiple profiles