Final answer:
Bowel sounds are most active and easiest to auscultate over the right lower quadrant (RLQ) of the abdomen.
Step-by-step explanation:
In medicine, the abdomen is divided into four quadrants: right upper quadrant (RUQ), right lower quadrant (RLQ), left upper quadrant (LUQ), and left lower quadrant (LLQ). The bowel sounds are most active and therefore easiest to auscultate in the RLQ. This is because the RLQ contains the terminal ileum, which is the last part of the small intestine and is highly active in terms of digestion and movement of food.