Which of the Following Statements Is True About Same-Sex Unions

Which of the following statements is true about same-sex unions?

A) there are plenty of data available on the numbers of people in same-sex unions
B) same-sex unions are not likely a growing phenomenon of family living
C) more men than women are likely engaged in same-sex unions, if we accept that more men are homosexuals
D) it is unlikely that people in same-sex unions have been previously involved in a heterosexual marriage
E) it is unlikely that some portion of people in same-sex unions have had children