During the Industrial Revolution,there Was a Spike in the Number

During the Industrial Revolution,there was a spike in the number of prostitutes.How did governments deal with the issue?

A) They ignored it.
B) They treated it as a necessary evil that needed regulation.
C) They considered it a private matter;the government taxed the income from prostitution but otherwise left it alone.
D) They outlawed it in most Western European countries.
E) They celebrated it for its service of keeping the traditional family united.