question: Q:A 4-year-old boy is brought to the clinic by his mother with a history of multiple falls for the last 8 months. He was born at term without any perinatal complications. At birth, his weight and height were 57th and 62nd percentile for his age, respectively. For the first year, he had normal developmental milestones. He started walking at the age of 17 months and started climbing stairs at 2 years of age. For the last 8–10 months, he has been walking clumsily, has fallen multiple times, and is having difficulty standing from the sitting position. He is not able to climb the stairs now. Past medical history is unremarkable. His vaccinations are up-to-date. His maternal uncle had a similar history, and he became bed-bound at 12 years of age. During the physical examination, the patient stood up from sitting position slowly by placing hands on his knees. What additional findings will be present in this patient?? 
  {'A': 'Early contractures at multiple joints', 'B': 'Inability to release grasp after handshake', 'C': 'Inverted champagne bottle legs', 'D': 'Pseudohypertrophy of the calf muscles', 'E': 'Rash over shoulders and anterior chest'},