**Core Concept**
Chediak-Higashi syndrome is a rare, autosomal recessive disorder characterized by oculocutaneous albinism, recurrent infections, and bleeding tendencies due to impaired lysosomal function and membrane trafficking. It is caused by mutations in the LYST gene, which encodes a protein critical for the formation and transport of lysosomes and other membrane-bound organelles.

**Why the Correct Answer is Right**
The condition is associated with impaired phagocytosis and intracellular killing of pathogens, leading to recurrent infections. This is due to the accumulation of abnormal lysosomes and other organelles in cells, which disrupts the normal functioning of these organelles and impairs the immune response. The resulting albinism is caused by the impaired transport of melanin-containing vesicles within melanocytes.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is a common distractor, but it is not the primary feature of Chediak-Higashi syndrome. While patients may have some degree of immunodeficiency, it is not the defining characteristic of the condition.

**Option B:** While patients with Chediak-Higashi syndrome may have some degree of bleeding tendency, it is not the primary feature of the condition.

**Option C:** This option is a distractor that is not directly related to the primary features of Chediak-Higashi syndrome.

**Clinical Pearl / High-Yield Fact**
Chediak-Higashi syndrome is characterized by a triad of albinism, immunodeficiency, and bleeding tendency, and is caused by mutations in the LYST gene. This condition highlights the importance of lysosomal function and membrane trafficking in maintaining cellular homeostasis and immune response.

**Correct Answer:** D.