What kind of artworks do the guerrilla girls make?

They are photographers, designers, activists, and conceptual artists

Feminist posters :

Guerrilla Girls is an anonymous combination of feminist, female professionals dedicated to opposing sexism and prejudice in the art world. The association established in New York City in 1985 with the purpose of making gender and ethnic difference into focus in the numerous arts association. The group manipulates society jamming in the form of posters, brochures, billboards, and public presentations to present hatred and fraud. To remain anonymous, elements don gorilla costumes and use anonyms that regard to departed female artists.

Generally spontaneous human combustion is something that still bewilders some, human combustion happens very rarely and doesn't affect the surrounding areas, so unless you want to set your self on fire, human combustion will remain spontaneous and very rare.

Ill have to say false. hope this