**Core Concept**
The "Five Cleans" are a set of practices used to prevent neonatal tetanus, a serious infection that can occur in newborn babies. These practices aim to reduce the risk of tetanus infection by eliminating the bacterium Clostridium tetani from the environment.

**Why the Correct Answer is Right**
The "Five Cleans" include:
- Cleaning the birth attendant's hands
- Cleaning the birth surface
- Cleaning the cord with a clean blade
- Cleaning the cord stump
- Cleaning the baby's hands and feet
However, one of the options is not a part of the "Five Cleans" practices.

**Why Each Wrong Option is Incorrect**
* **Option A:** Cleaning the birth attendant's hands is a crucial part of the "Five Cleans" to prevent the transmission of tetanus spores.
* **Option B:** Cleaning the birth surface is another essential practice to prevent tetanus infection.
* **Option C:** Cleaning the cord stump is also a part of the "Five Cleans" to reduce the risk of tetanus infection.
* **Option D:** Cleaning the baby's hands and feet is not one of the "Five Cleans" practices, which focuses on the birth attendant, birth surface, cord, and cord stump.

**Clinical Pearl / High-Yield Fact**
Remember the "Five Cleans" acronym to ensure you cover all the essential practices for preventing neonatal tetanus: Clean Attendant, Clean Birth Surface, Clean Cord, Clean Stump, and Clean Hands.

**Correct Answer: D. Cleaning the baby's hands and feet.**