Criminologist: Those who propose a rule mandating a life sentence for any criminal who has multiple convictions for serious crimes argue that it would be a welcome crackdown on career criminals. In reality, however, few repeat offenders are convicted of anything other than minor violations. The criminologist's statements, if true, most strongly support which one of the following? ['The sentencing of most repeat offenders would be unaffected by the proposed rule if it became law.', 'People who have never been convicted of minor violations are unlikely to become career criminals.', 'Many first-time offenders are convicted of serious crimes as well as minor violations.', 'Most people who have committed serious crimes are not convicted of anything other than minor violations.']