A 59-year-old woman is brought to the ER in respiratory distress after her abdomen impacted the steering wheel in a motor vehicle accident. Auscultation of the left chest reveals the absence of audible breath sounds, but the presence of bowel sounds is noted. The given chest X-ray reveals radiopacity in her lower left hemithorax and a rightward mediastinal shift. Which of the following diagnoses would best explain the patient's presentation?
A) Tension pneumothorax
B) Hemopneumothorax
C) Diaphragmatic hernia
D) Emphysema
E) Left lower lobe pneumonia