The correct answer is d) right hypochondriac.
The liver is a large organ situated in the upper right portion of the abdomen. It occupies predominantly the right hypochondriac region, which is located beneath the rib cage on the right side. This region is specifically designed to house several vital organs, and the liver, being one of the largest, fits well into this area.
To elaborate, the left iliac region is primarily associated with parts of the colon and some reproductive organs, the right lumbar region contains parts of the kidney and colon, and the umbilical region generally includes parts of the small intestine and some parts of the colon. Therefore, it’s clear that the liver’s primary location is in the right hypochondriac region, making answer d) the most accurate choice.