Question

An unwanted thought that takes control of the mind is
A compulsion
An obsession

Answer 1

An unwanted thought that takes control of the mind is typically referred to as **an obsession**. Obsessions are intrusive and persistent thoughts that cause anxiety or distress. On the other hand, a compulsion is a behavior or action that an individual feels driven to perform in response to an obsession, often in an attempt to reduce the distress caused by the obsession.