**Core Concept**
The Venereal Disease Research Laboratory (VDRL) test is a non-treponemal serological test used for the screening and diagnosis of syphilis. A false-positive VDRL result can occur due to various non-specific factors, including infections, autoimmune conditions, or other medical conditions.

**Why the Correct Answer is Right**
A false-positive VDRL result can be seen in patients with chronic liver disease. This is because the liver plays a crucial role in the metabolism and clearance of lipids, which are used in the VDRL test. In chronic liver disease, the liver's ability to metabolize lipids is impaired, leading to an accumulation of lipids in the bloodstream. This can cause a non-specific reaction in the VDRL test, resulting in a false-positive result.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not relevant to the VDRL test or liver disease.
* **Option B:** While pregnancy can cause false-positive results in some serological tests, it is not a common cause of false-positive VDRL results.
* **Option C:** This option is not a known cause of false-positive VDRL results.

**Clinical Pearl / High-Yield Fact**
Chronic liver disease can cause false-positive results in the VDRL test due to the impaired metabolism and clearance of lipids in the liver.

**Correct Answer:** C. Chronic liver disease.