Correct Answer:
B. Small intestine
Explanation:
Maltose (malt sugar) is a disaccharide consisting of two bonded glucose molecules. Its digestion is finalized in the human digestive system through specific enzymatic actions within the small intestine.
### Important Facts:
* **Enzyme:** The enzyme **maltase**, located on the brush border microvilli of the small intestine wall, breaks down maltose into two individual units of glucose.
* **Absorption:** Once converted into simple glucose, it is readily absorbed through the intestinal walls into the bloodstream for energy.
* **Salivary Start:** While starch breakdown begins in the mouth via salivary amylase, actual maltose conversion to glucose happens exclusively in the small intestine.