The author's attitude towards divorce may best be described as "______".

A．divorce is a better solution to an unhappy marriage than staying together
B．divorce is not necessarily the only solution to an unhappy marriage
C．keeping an unhappy marriage needs much courage and endurance
D．to end an unhappy marriage or net is a tough decision for the spouses

A．It was conducted by the Institute for the American Values headed by David Blankenhorn.
B．It was sponsored by the Coalition for Marriage, Families and Couples Education:
C．Its subjects were chosen from a national database based at the University of Chicago.
D．Its report will be included in the schedule of the "Smart Marriage" conference.