A 31-Year-Old Woman Has a History of Poliomyelitis Affecting the Anterior

A 31-year-old woman has a history of poliomyelitis affecting the anterior horn cells of the lower thoracic and lumbar segments of the spinal cord on the left side. On examination, she has severe right lateral flexion deformity of the vertebral column.
-The following statements are true about this case except which?

A) The virus of poliomyelitis attacks and destroys the motor anterior horn cells of the spinal cord.
B) The disease resulted in the paralysis of the muscles that normally laterally flex the vertebral column on the left side.
C) The muscles on the right side of the vertebral column are unapposed.
D) The right lateral flexion deformity is caused by the slow degeneration of the sensory nerve fibers originating from the vertebral muscles on the right side.