The argument makes which of the following assumptions? A. Emigration from Preland is more common among women than among men. B. A greater proportion of Prelandic women in their thirties than of Prenlandic men of the same age would prefer to remain unmarried. C. It is unlikely that many of these unmarried Prenlandic men will marry women more than a few years older than themselves. D. Prenland has a high rate of divorce. E. Most of the unmarried Prenlandic men are unwilling to marry women who are not Prenlandic.