**Core Concept**
Centrifugal spread of rash refers to the progression of a rash from the center of the body outward, often seen in diseases that affect the skin and nervous system. This pattern is characteristic of certain viral infections that cause a rash to spread from the trunk to the extremities.

**Why the Correct Answer is Right**
The correct answer is likely a disease caused by the herpes zoster virus, which is responsible for shingles. The rash in shingles typically starts as a band or strip of vesicles on one side of the body, often around the waist or chest, and then spreads centrifugally to the adjacent areas. This is due to the reactivation of the latent varicella-zoster virus in the dorsal root ganglia, which causes a localized inflammation and rash.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is likely a disease that shows a centripetal spread of rash, such as in meningococcemia, where the rash starts on the extremities and spreads centrally.
* **Option B:** This option may be a disease that does not typically show a centrifugal spread of rash, such as in measles, where the rash often starts on the head and spreads to the rest of the body.
* **Option C:** This option may be a disease that shows a different pattern of rash spread, such as in erythema multiforme, where the rash is typically symmetric and involves the hands and feet.

**Clinical Pearl / High-Yield Fact**
Shingles is a reactivation of the varicella-zoster virus, which causes a painful rash that typically affects one side of the body. It is more common in older adults and individuals with weakened immune systems.

**Correct Answer: C. Shingles**