Answer:
D. organizing the books
Explanation:
Compulsion: The term compulsion refers to the repetitive behavior carried out by an individual to avoid or ignore distressing situations. An individual usually perform compulsion to get rid of the obsession leading situations.
Example: washing hands & checking a locked door repeatedly, and rearranging or arranging items in a particular order.
Treatment: Psychotherapy including exposure and response prevention, cognitive behavioral therapy, etc.