**Core Concept**
The Woods lamp is a diagnostic tool used in dermatology to detect fungal and bacterial infections, as well as other skin conditions. It emits ultraviolet (UV) light, which causes certain microorganisms to fluoresce, allowing for their identification.

**Why the Correct Answer is Right**
The Woods lamp emits UV light at a specific frequency, which is essential for its diagnostic capabilities. The correct frequency of the Woods lamp is 365 nanometers (nm), which falls within the UVA range. This frequency is chosen because it is the optimal range for detecting the fluorescence of certain microorganisms, such as Pseudomonas aeruginosa. The fluorescence of these microorganisms occurs due to the presence of porphyrins, which are excited by the UVA light and emit light at a longer wavelength, allowing for their detection.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it does not match the known frequency of the Woods lamp. While it is close, it is not the correct frequency.
* **Option B:** This option is incorrect because it is a different type of UV light altogether. The Woods lamp does not emit UVB light, which is more energetic and can cause sunburn.
* **Option C:** This option is incorrect because it is too high and does not match the frequency of the Woods lamp.

**Clinical Pearl / High-Yield Fact**
When using a Woods lamp, it is essential to note that the fluorescence of certain microorganisms can be affected by the presence of certain medications, such as antifungals, which can suppress the fluorescence.

**Correct Answer: C. 360 nm**