Frederick goes through his house straightening his pictures all day long. Once he's straightened all of them, he starts over even though he knows this is irrational. We can say that Frederick's obsessive-compulsive disorder is marked by

The correct answer is Controlling compulsions

Obsessive-compulsive disorder is characterized by obsessions, compulsions, or both. Obsessions are recurring, persistent, unwanted ideas, images or impulses that cause anxiety and are intrusive. Compulsions (also known as rituals) are certain mental actions or acts that the person feels compelled to practice to try to reduce or avoid the anxiety caused by obsessions.

Most cases of obsessive-compulsive behavior are related to concerns about harm or risk.

The doctor diagnoses the disorder when the person has obsessions, compulsions, or both.

Treatment may include exposure therapy (with prevention of compulsive rituals) and certain antidepressants (selective serotonin or clomipramine reuptake inhibitors).

Obsessive-compulsive disorder (OCD) is slightly more frequent in women than in men and affects between 1% and 2% of the population. On average, OCD begins between 19 and 20 years of age, however, more than 25% of cases begin before 14 years of age (Obsessive-compulsive disorder (OCD) and related disorders in children and adolescents). Up to 30% of people with OCD have or have had a tic disorder.

At this point, OCD differs from psychotic disorders, in which the person loses contact with reality. OCD is also different from obsessive-compulsive personality disorder, although people with these disorders may have the same characteristics, such as being methodical, reliable or perfectionist.

answer; i do believe its (b) 12.5 years of age;