**Core Concept**
Behcet's disease is a form of vasculitis characterized by a triad of recurrent oral ulcers, genital ulcers, and uveitis. The revised guidelines for diagnosing Behcet's disease were introduced to improve diagnostic accuracy and consistency. This involves a set of major and minor criteria.

**Why the Correct Answer is Right**
The International Criteria for Behcet's disease, also known as the Behcet's Disease Diagnostic Criteria, assigns different point values to various clinical manifestations. Oral ulcers and genital ulcers are considered major criteria, while skin lesions and other manifestations are minor criteria. The correct answer carries 2 points in the revised guidelines, indicating its significant weightage in the diagnostic criteria.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option does not specify the correct point value for oral ulcers, which are a major criterion in the Behcet's Disease Diagnostic Criteria.
* **Option B:** This option incorrectly assigns a 2-point value to eye lesions, which are also a major criterion but carry a different point value.
* **Option D:** This option is incomplete and does not specify the correct point value for any of the criteria.

**Clinical Pearl / High-Yield Fact**
It is essential to remember that the Behcet's Disease Diagnostic Criteria assign different point values to various clinical manifestations, with oral ulcers and genital ulcers being major criteria. This helps in diagnosing Behcet's disease accurately and consistently.

**Correct Answer: C. Skin lesions.**