Last year, Mayor Stephens established a special law-enforcement task force with the avowed mission of eradicating corruption in city government. The mayor' s handpicked task force has now begun prosecuting a dozen city officials. Since all of these officials were appointed by Mayor Bixby, Mayor Stephens' predecessor and longtime political foe, it is clear that those being prosecuted have been targeted because of their political affiliations. Which of the following, if true, most weakens the editorial's argument? ['Complaints of official corruption in city government have decreased since the anticorruption task force began operating.', 'Almost all of the officials who have served in city government for any length of time are appointees of Mayor Bixby.', "Former mayor Bixby did not publicly oppose Mayor Stephens' establishment of the anticorruption task force.", 'All of the members of the anticorruption task force had other jobs in city government before the task force was formed.']