This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of sebaceous and sweat glands, Subject name: Dental
A 25 year old female comes to OPD with history of spots, red bumps that are located principally on the proximal cheeks, central chin, nose and central forehead. It gets aggravated on sun exposure. On examination, telangiectasia is seen on cheeks. What is the most probable cause ? 
Select and explain. 
A. Polymorphic light eruption, B. SLE, C. Acne vulgaris, D. Rosacea
D: Rosacea
Answer: D: Rosacea 
Explanation: The given clinical scenario is of Rosacea as it gets aggravated on exposure to sunlight, redness seen on face convexities and telangiectasia Rosacea has 4 subtypes : Subtype 1: Erythematotelangiectatic rosacea (ETTR). Subtype 2: Papulopustular rosacea (PPR). Subtype 3: Phymatous rosacea (PR). Subtype 4: Ocular rosacea (OR). In SLE, rash spares Nasolabial fold