AKT-5283

AKT-5283

A 68-year-old man comes to his General Practitioner complaining of a mild, resting tremor in his arms and legs. Upon examination, it is slightly more pronounced on his left side. There is also a slight stiffness and slowness of movement in his arms. His blood pressure measures 150/85 mmHg.
What is the most probable diagnosis? Choose ONE answer only.