What Do We Know About the People Who Call Themselves

What do we know about the people who call themselves swingers?

A) Outside of the sexual area of life,they are quite ordinary.
B) Most male swingers identify as bisexual and engage in same-sex sexual activity very frequently in swinging situations.
C) Swingers are people who are interested in a wide range of kinky sexual activities with group sex being just one of them.
D) Most swingers describe themselves as politically liberal.