Training Program X and Training Program Y were both designed to increase "people skills." Training Program X requires 25% more hours to complete than Training Program Y. Three months after completion of the two Training Programs, the programs were evaluated and found to be equally successful. The developers of Training Program X made a strong argument that their training program is superior to Training Program Y, however, because the effects of Training Program X will last longer. It was concluded that Training Program X is superior to Training Program Y. Which of the following statements, if true, would most seriously weaken the above argument? radio_button_unchecked Training Program Y is more fun than Training Program X, according to those who took both. radio_button_unchecked The developers of Training Program X are not well liked by their coworkers. radio_button_unchecked A vocal minority believe that people skills are not nearly as important as technical skills. radio_button_unchecked After six months, people who took Training Program X had people skills similar to those who took Training Program Y. radio_button_unchecked After one year, people who took Training Program Y had better people skills than people who took Training Program X