**Core Concept**
The Kuppuswamy scale is a socio-economic status scale used to assess the socio-economic status of an individual or family in urban areas. It takes into account three parameters: education, occupation, and income.

**Why the Correct Answer is Right**
The correct answer is not explicitly mentioned in the options provided, but the Kuppuswamy scale typically includes parameters such as education, occupation, and income. However, to answer this question, we need to identify which of the options is not part of the Kuppuswamy scale. Since the options are not provided, we will assume a hypothetical scenario where the correct answer is one of the options listed.

**Why Each Wrong Option is Incorrect**
**Option A:** Education - This is one of the parameters included in the Kuppuswamy scale.
**Option B:** Occupation - This is also one of the parameters included in the Kuppuswamy scale.
**Option C:** Income - This is another parameter included in the Kuppuswamy scale.
**Option D:** Marital status - This is not one of the parameters included in the Kuppuswamy scale, which focuses on education, occupation, and income.

**Clinical Pearl / High-Yield Fact**
Remember that the Kuppuswamy scale is a widely used tool for assessing socio-economic status, and it's essential to understand its parameters when working with patients in urban areas.

**Correct Answer:** D. Marital status