[Solved] How effective is the treatment of avoidant personality disorder? A)Individuals with this disorder are seldom sufficiently motivated to succeed in treatment. B)There are well-controlled studies, though none show any treatment success. C)No well-controlled studies of treatment outcomes have been conducted. D)Behavioural intervention programs for anxiety and social skills have had some success. Monopoly Power: The exclusive control by one company over the entire supply of goods or services in a particular market. Ancillary Vertical Restraints: Restrictions imposed in distribution agreements, designed to support the main purpose of the contract and enhance competitiveness. Joint Undertaking: A collaborative effort or venture between two or more parties where each shares in the responsibilities, resources, and risks. Naked Horizontal Restraints: Unjustified agreements between competitors at the same level of the market to restrict trade or manipulate market conditions, deemed anticompetitive and illegal under antitrust law.