Read this passage from Roosevelt's "Quarantine" speech: War is a contagion, whether it be declared or undeclared.

Which piece of evidence helps support the viewpoint expressed in this passage? A:Civilians, including vast numbers of women and children, are being ruthlessly murdered with bombs from the air. B:We are adopting such measures as will minimize our risk of involvement, but we cannot have complete protection…C:The hopes for peace thus raised have of late given way to a haunting fear of calamity. D :They want to exert themselves in industry, in agriculture and in business, that they may increase their wealth.