Census data for Prenland show that unmarried Prenlandic men in their thirties outnumber unmarried Prenlandic women in that age group by about ten to one. Most of these men do wish to marry. Clearly, however, unless many of them marry women who are not Prenlandic, all but a minority will remain unmarried.
The argument makes which of the following assumptions
A．Emigration from Prenland is more common among women than among men.
B．A greater proportion of Prenlandic 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．(E) Most of the unmarried Prenlandic men are unwilling to marry women who are not Prenlandic.