Which of the Following Is True of Obsessive-Compulsive Disorder

Which of the following is true of obsessive-compulsive disorder?

A) Although most people have both obsessive thoughts and compulsive rituals, rarely are the two issues related.
B) Once thought to be a fairly common disorder, with new diagnostic criteria, it is seen as quite rare.
C) This disorder tends to begin in adolescence or early adulthood, but is not uncommon in children.
D) Nearly six times more women than men suffer from OCD.