**Core Concept**
The question is testing the understanding of carbohydrate digestion and absorption in the small intestine. The underlying process involves the breakdown of complex sugars into simpler ones, which are then absorbed into the bloodstream.

**Why the Correct Answer is Right**
The correct answer is maltose. Maltose is a disaccharide formed by the condensation of two glucose molecules. It is produced by the enzyme maltase, which is located on the surface of the microvilli in the small intestine. Maltase breaks down maltose into two glucose molecules, which are then absorbed into the bloodstream. This process is essential for providing energy to the body.

**Why Each Wrong Option is Incorrect**
* **Option A:** Lactose is a disaccharide composed of glucose and galactose, not the final sugars in intestinal chyme.
* **Option B:** Sucrose is a disaccharide composed of glucose and fructose, but it is not the final product of carbohydrate digestion in the small intestine.
* **Option D:** Galactose is a simple sugar, but it is not the final product of carbohydrate digestion in the small intestine; it is a component of lactose.

**Clinical Pearl / High-Yield Fact**
It's worth noting that lactase deficiency can lead to lactose intolerance, a condition where individuals are unable to digest lactose due to a lack of the enzyme lactase. This can cause symptoms such as bloating, gas, and diarrhea.

**Correct Answer:** C. Maltose