**Core Concept**
Hereditary disorders with an abnormally high predisposition to malignancy are a group of conditions where there is a genetic component to the development of cancer. These disorders often involve mutations in genes that regulate cell growth and division, leading to uncontrolled cell proliferation and tumor formation.

**Why the Correct Answer is Right**
The correct answer is a hereditary disorder that does not have a significantly increased risk of malignancy. For example, **Familial Polyposis Coli (FAP)** is a rare genetic disorder caused by mutations in the APC gene, leading to the development of numerous adenomatous polyps in the colon. If left untreated, there is a nearly 100% risk of colorectal cancer. On the other hand, **Tuberous Sclerosis Complex (TSC)** is a genetic disorder caused by mutations in the TSC1 or TSC2 genes, leading to the growth of non-cancerous tumors in various organs, including the brain, kidneys, and skin. While TSC has an increased risk of certain malignancies, such as subependymal giant cell astrocytomas (SEGA) and renal angiomyolipomas, the risk is not as high as in FAP.

**Why Each Wrong Option is Incorrect**
* **Option A:** Not provided.
* **Option B:** Not provided.
* **Option C:** Not provided.

**Clinical Pearl / High-Yield Fact**
When evaluating patients with hereditary disorders, it's essential to assess their risk of malignancy and implement appropriate surveillance and preventive measures. For example, patients with FAP should undergo regular colonoscopies to remove polyps and prevent colorectal cancer.

**Correct Answer:** D.