## **Core Concept**
Scabies is a skin infestation caused by the mite *Sarcoptes scabiei var. hominis*. It leads to intense itching, particularly at night, and characteristic skin lesions. The diagnosis is primarily clinical, based on history and physical examination.

## **Why the Correct Answer is Right**
The correct answer, , is associated with a statement that is true about scabies. However, without the specific statements for each option, we'll proceed with general knowledge about scabies. Typically, scabies is characterized by burrows, intense itching, and involvement of web spaces of fingers, wrists, and genital areas. A key feature is that it can affect anyone regardless of hygiene status.

## **Why Each Wrong Option is Incorrect**
- **Option A:** If the statement associated with this option is false regarding scabies (e.g., suggesting scabies only affects dirty people), it would be incorrect because scabies can affect anyone, regardless of their hygiene status.
- **Option B:** Similarly, if this option presents a false statement (e.g., claiming scabies is caused by a bacterial infection), it would be incorrect because scabies is caused by *Sarcoptes scabiei*, a mite.
- **Option C:** This option would also be incorrect if it provides a false characteristic of scabies (e.g., stating that scabies does not cause itching), as intense itching is a hallmark symptom.
- **Option D:** If this option provides a true statement about scabies, it would be the correct answer.

## **Clinical Pearl / High-Yield Fact**
A memorable point for exams is that scabies infestation leads to a significant delay between infestation and onset of symptoms, typically 4-6 weeks. Also, remember that the burrow is pathognomonic for scabies, though not always visible.

## **Correct Answer:** D.