**Core Concept**
The question is testing the understanding of a specific skin condition characterized by the formation of brown macular lesions in response to light exposure, particularly in sun-exposed areas.

**Why the Correct Answer is Right**
The probable diagnosis is solar lentigo, also known as liver spots or age spots. Solar lentigines are benign pigmented lesions that develop in response to chronic sun exposure, leading to an increase in melanin production. This condition is common in fair-skinned individuals, especially those with a history of prolonged sun exposure. The brown macular lesions on Sony's nose and cheek are consistent with solar lentigines.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the description provided.
**Option B:** This option is not a common skin condition characterized by brown macular lesions in response to light exposure.
**Option C:** This option is not a correct diagnosis for the described condition.

**Clinical Pearl / High-Yield Fact**
Solar lentigines can be prevented by using sunscreen with a sun protection factor (SPF) of 30 or higher, wearing protective clothing, and seeking shade when exposed to direct sunlight.

**Correct Answer: C. Solar lentigo.**