Final answer:
The organ located in the lower right quadrant of the abdomen is the appendix, not the liver, bladder, or ovaries. The liver is in the upper quadrant, the bladder is central, and the ovaries are generally lower but not in a specific quadrant.
Step-by-step explanation:
The organ located in the lower right quadrant of the abdomen is the appendix. The liver is indeed a vital organ playing important roles in metabolism, digestion, and regulation, but it is situated in the upper right quadrant of the abdominal cavity, protected by the ribs and attached to the abdominal wall and diaphragm by ligaments. The bladder is located in the pelvic region, central to the lower quadrants, whereas the ovaries (in females) are located in the lower abdominal region but not specifically in the right quadrant. Therefore, the correct answer to the question is appendix, which is connected to the cecum, a part of the large intestine.