The correct answer is a) abdominopelvic.
The abdominopelvic cavity is the largest body cavity in the human body and is divided into two regions: the abdominal cavity and the pelvic cavity. The stomach is situated within the abdominal cavity, which also contains other vital organs such as the intestines, liver, and kidneys. The thoracic cavity, on the other hand, houses the heart and lungs and is located above the abdominopelvic cavity. The cranial cavity contains the brain, and the dorsal cavity consists of the cranial and vertebral cavities. Therefore, the abdominopelvic cavity is the correct term for the location of the stomach.