Valitania' s long-standing practice of paying high salaries to its elected politicians has had a disastrous effect on the level of integrity among politicians in that country. This is because the prospect of earning a high salary is always attractive to anyone whose primary aim in life is to make money, so that inevitably the wrong people must have been attracted into Valitanian politics: people who are more interested in making money than in serving the needs of the nation. Which one of the following, if true, would weaken the argument? ['Most of those who are currently Valitanian politicians could have obtained better-paid work outside politics.', 'Many Valitanian candidates for elected office spend some of their own money to finance their campaigns.', 'Most Valitanian elective offices have four-year terms.', 'No more people compete for elected office when officeholders are paid well than when they are paid poorly.']