Answer:
Option B, somatic disorder
Explanation:
Parkinson's disease (PD) is a degenerative neurological disorder in which the nerve cells within an area of a person's brain responsible for the production of neurotransmitter dopamine slowly begin to undergo cell death, leading to decreasing its supply within the basal ganglia which helps to regulate and allow for motor function. Because of this, the patients often exhibit problems with movement such as a shuffling gait, instable posture, muscle rigidity, slow movement and the hallmark characteristic hand tremor at rest that stops during activity. These patients may also experience changes in mood, behaviors, and thought content.
Because of its pathology and manifestations, PD is considered a somatic disorder -- a disorder in which the clinical signs and symptoms of the condition are mostly physical, causing marked emotional distress and impaired ability to complete activities of daily living (ADLs).
Therefore, option B is the best choice.
