**Core Concept**
A conjugated protein is a type of protein that consists of a protein moiety combined with a non-protein component, such as carbohydrates, lipids, or metal ions. This combination results in a protein with unique properties and functions.

**Why the Correct Answer is Right**
The correct answer is a hemoglobin molecule, which is a conjugated protein composed of a protein moiety (globin) and a non-protein component (heme). The heme group is responsible for binding oxygen, and its iron atom plays a crucial role in the oxygen-binding process. The globin protein provides a scaffold for the heme group and is involved in the transport of oxygen to tissues.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not specified, but it could potentially be a non-conjugated protein, such as a simple protein like albumin or globulin, which does not have a non-protein component.
* **Option B:** This option is not specified, but it could potentially be a type of enzyme, such as a hydrolase, which is a simple protein and not a conjugated protein.
* **Option C:** This option is not specified, but it could potentially be a nucleoprotein, which is a type of conjugated protein that contains both protein and nucleic acid components. However, it is not the best example of a conjugated protein.

**Clinical Pearl / High-Yield Fact**
Conjugated proteins often have unique properties and functions due to their non-protein components, such as the ability to bind to specific molecules or ions. Understanding the composition and properties of conjugated proteins is essential for diagnosing and treating various diseases.

**Correct Answer:** C. Hemoglobin