**Core Concept**
Pseudojaundice, also known as carotenemia, is a condition characterized by yellowish discoloration of the skin and mucous membranes, caused by the accumulation of carotenoid pigments. This condition is distinct from true jaundice, which is caused by elevated levels of bilirubin in the blood.

**Why the Correct Answer is Right**
Pseudojaundice occurs when there is an excessive intake of carotenoid-rich foods, such as carrots, sweet potatoes, and squash. The carotenoids are absorbed into the bloodstream and deposited in fat tissues, causing the characteristic yellowish discoloration. This condition is harmless and reversible upon reduction of carotenoid intake.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because pseudojaundice is not caused by a liver dysfunction or a hematological disorder, which are common causes of true jaundice.
**Option B:** This option is incorrect because pseudojaundice is not a side effect of a medication, such as chlorpromazine, which can cause true jaundice.
**Option C:** This option is incorrect because pseudojaundice is not a result of a genetic disorder, such as Gilbert's syndrome, which can cause a mild elevation of bilirubin levels.

**Clinical Pearl / High-Yield Fact**
Carotenemia can be a useful clinical clue to identify individuals who consume excessive amounts of carotenoid-rich foods, which can also indicate a healthy diet high in fruits and vegetables.

**Correct Answer: A. Carotenoid-rich foods.