What are hallmark features of Huntington's disease?

Huntington's disease is characterized by an array of symptoms that significantly impact both physical and mental health. The hallmark features include motor dysfunction, which often manifests as chorea—irregular, jerky movements—as well as problems with coordination and balance. Cognitive decline is also prevalent, leading to difficulties with executive function, decision-making, and memory. Furthermore, psychiatric symptoms, such as depression, anxiety, and changes in mood or behavior, are commonly observed in individuals with Huntington's disease.

These key features provide a comprehensive understanding of how the disease affects patients, making option B the most accurate representation of the condition. Other choices listed do not accurately reflect the well-documented symptoms associated with Huntington's disease.