**Core Concept**
Hereditary hemochromatosis is a genetic disorder characterized by excessive iron absorption, leading to iron overload and subsequent tissue damage. It is primarily caused by mutations in the HFE gene, which encodes a protein involved in regulating iron metabolism.

**Why the Correct Answer is Right**
Hereditary hemochromatosis is indeed an autosomal recessive disorder, meaning that individuals must inherit two mutated copies of the HFE gene (one from each parent) to express the disease. The condition is associated with an increased risk of developing cirrhosis, cardiomyopathy, and diabetes mellitus due to iron deposition in these organs. The excess iron also leads to the formation of reactive oxygen species, contributing to tissue damage and dysfunction.

**Why Each Wrong Option is Incorrect**
**Option A:** This statement would be incorrect if it mentioned hereditary hemochromatosis being an autosomal dominant disorder, as it is actually autosomal recessive.
**Option B:** Hereditary hemochromatosis is indeed associated with mutations in the HFE gene, making this statement true. However, it is not the correct answer to the question.
**Option C:** This statement would be incorrect if it mentioned hereditary hemochromatosis being a disorder of copper metabolism, as it is actually a disorder of iron metabolism.
**Option D:** This statement would be incorrect if it mentioned hereditary hemochromatosis being caused by mutations in the HBB gene, as it is actually caused by mutations in the HFE gene.

**Clinical Pearl / High-Yield Fact**
It is essential to note that hereditary hemochromatosis can be diagnosed through genetic testing, serum iron studies, and liver biopsy. Early diagnosis and treatment with phlebotomy can prevent long-term complications and improve patient outcomes.

**Correct Answer: A.**