Which of the following statements is true regarding the consequences of brainstem compression?

A. While the brainstem does influence cardiovascular function, brainstem compression affects multiple critical systems, not just cardiovascular. B. The medulla oblongata in the brainstem contains the respiratory control centers. Compression can disrupt respiratory drive, leading to respiratory arrest, making this the correct answer. C. The gastrointestinal system is not primarily affected by brainstem compression. D. This is false, as brainstem compression severely affects respiratory function due to involvement of respiratory centers.