Company president: Most of our best sales representatives came to the job with a degree in engineering but little or no sales experience. Thus, when we hire sales representatives, we should favor applicants who have engineering degrees but little or no sales experience over applicants with extensive sales experience but no engineering degrees. Which one of the following, if true, most seriously weakens the company president's argument? ['Some of the people who the company has hired as sales representatives and who were subsequently not very good at the job did not have extensive previous sales experience.', 'Most of the people hired by the company as sales representatives have had a degree in engineering but no sales experience.', "Some of the company's sales representatives completed a degree in engineering while working for the company.", 'Most of the people who apply for a sales representative position with the company do not have a degree in engineering.']