**Core Concept**
Steroid sulfatase deficiency is a genetic disorder affecting the enzyme steroid sulfatase, which is crucial for the hydrolysis of sulfated steroids, including cholesterol sulfate and other sulfated steroids. This enzyme plays a vital role in the metabolism of various steroid hormones.

**Why the Correct Answer is Right**
Steroid sulfatase deficiency leads to the accumulation of cholesterol sulfate in the skin, causing the characteristic symptoms of X-linked ichthyosis, a congenital skin disorder characterized by dry, scaly skin. The deficiency is usually inherited in an X-linked recessive pattern, predominantly affecting males due to their having only one X chromosome. The enzyme's deficiency results from mutations in the STS gene, which encodes the steroid sulfatase enzyme.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not relevant to the question as it does not describe a condition associated with steroid sulfatase deficiency.
* **Option B:** This option might seem plausible but is incorrect as it does not specifically relate to the enzyme deficiency in question.
* **Option C:** This option is incorrect as it describes a different enzyme deficiency unrelated to steroid sulfatase.

**Clinical Pearl / High-Yield Fact**
Steroid sulfatase deficiency can be diagnosed through a combination of clinical examination, family history, and molecular genetic testing. It is essential for clinicians to recognize the characteristic skin manifestations and consider the possibility of X-linked ichthyosis in affected individuals.

**Correct Answer: D. X-linked ichthyosis**