[Solved] Gingivitis is A)primarily caused by anaerobic oral flora. B)erosion of tooth enamel causing a lesion. C)caused by Streptococcus mutans. D)also called NUG. E)None of the choices are correct. Pornography: Sexually explicit material intended to stimulate erotic feelings rather than aesthetic or emotional feelings. Loveless Marriages: Marriages in which the partners lack a romantic or emotional connection, often staying together for reasons other than love. Legalization: The act of legalizing something that was once forbidden by law. Prostitution: The practice of engaging in sexual activity in exchange for payment or other benefits.