A 45-Year-Old Woman Was Shopping in a Liquor Store When

A 45-year-old woman was shopping in a liquor store when an armed robbery took place. A shoot-out occurred and a bullet ricocheted off the wall and entered her left side. Fortunately, the bullet did not enter the peritoneal cavity. One year later, in addition to diminished skin sensation over the left lumbar region and umbilicus, she noticed a bulging forward of the left side of her anterior abdominal wall.
-The symptoms and signs displayed by this patient can be explained by the following statements except which?

A) The bullet cut the ninth and tenth intercostal nerves just below the costal margin on the left side.
B) The diminished skin sensation was caused by the loss of the sensory nerve supply to the ninth and tenth thoracic dermatomes.
C) Portions of the oblique, transversus, and rectus abdominis muscles on the left side were paralyzed.
D) Atrophy of the pyramidalis muscle resulted in loss of support to the abdominal viscera, which then sagged forward.