A nurse is reinforcing teaching to a newly licensed nurse about the pathophysiology of Crohn's disease. Which of the following statements by the nurse indicates an understanding of the teaching?

Brief Introduction: Crohn’s disease is an autoimmune disorder involving a dysregulated immune response against commensal gut flora, primarily mediated by T-helper 1 cytokines. It results in transmural inflammation that penetrates all layers of the bowel wall, often leading to complications such as strictures, abscesses, and enteroenteric fistulas. Rationale: A. Crohn's disease is characterized by skip lesions, which are areas of inflammation separated by healthy tissue anywhere from the mouth to the anus. This asymmetric distribution is a hallmark feature that distinguishes it from other inflammatory bowel diseases which follow a continuous and predictable anatomical pattern. B. This statement describes the typical progression of ulcerative colitis, which is restricted to the large intestine and starts at the rectum. Crohn's disease is not limited to the colon and frequently involves the terminal ileum and the cecum in a non-contiguous manner. C. The inflammatory response in Crohn's disease is actually maladaptive and characterized by granuloma formation and significant tissue remodeling. It is not limited to the ileum and frequently presents with extraintestinal manifestations, including uveitis, migratory polyarthritis, and erythema nodosum. D. Tumor necrosis factor-alpha is elevated in Crohn’s, but it is a chemical mediator of the inflammatory cascade rather than the primary cause of antigen recognition dysfunction. The disease etiology involves a complex interplay of genetic susceptibility and environmental triggers that compromise the intestinal epithelial barrier.