This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Esophagus, Subject name: Surgery
An upward dislocation of both the cardia and gastric fundus is which type of hiatal hernia? 
Select and explain. 
A. I, B. II, C. III, D. IV
C: III
Answer: C: III 
Explanation: Types of hiatus hernia Type I Type II Type III Type IV Known as Sliding hernia Rolling / true PEH Mixed PEH PEH with Herniation of another intra-abdominal organ Incidence M/C - M/C PEH - Thorax GE Juncn Fundus GE Juncn + Fundus Intra-abdominal organ Symptoms Reflux Abd Pain(Due to Ischemia) Reflux + Abd pain Abd pain | Risk of strangulation