The foreign minister of Zeria announced today that her country was severing diplomatic relations with Nandalo because of Nandalo' s flagrant violations of human rights. But Zeria continues to maintain diplomatic relations with many countries that the minister knows to have far worse human-rights records than Nandalo does. Ttherefore, despite the foreign minister' s claim, this latest diplomatic move cannot be explained exclusively by Zeria' s commitment to upholding human rights. Which one of the following, if true, provides the most support for the argument in the passage? ['The opposition party in Zeria has long advocated severing trade relations with countries that systematically violate human rights but has opposed severing diplomatic relations.', "Two weeks after the Zerian minister's announcement, several other countries cited human-rights violations as a reason for severing diplomatic relations with Nandalo.", 'More countries have expressed concern over reported human-rights violations in Nandalo than have expressed concern over human-rights violations in Zeria.', "The country that currently buys most of Zeria's exports recently suggested that it might severely restrict its imports from Zeria unless Zeria broke off diplomatic relations with Nandalo."]