Kathy Gilmour was referred to the social worker by her family physician due to excessive handwashing. She takes no medications other than an antibiotic ointment to reduce the possibility of infection – her hands are washed to the extent she has open sores. Kathy admits to spending up to 4 hours a day washing her hands. Sometimes she spends more time washing if she feels the washing has not been done "right'" What is the most likely diagnosis for Kathy? Question 4 options: Generalized anxiety disorder Trichotillomania Body dysmorphic disorder Obsessive-compulsive disorder