**Core Concept**
Acute neonatal meningitis is a serious infection that occurs in newborns, typically within the first month of life. The most common causes of neonatal meningitis are **Gram-positive** and **Gram-negative bacteria**.

**Why the Correct Answer is Right**
The correct answer is associated with a lower incidence of acute neonatal meningitis. Common pathogens include **Group B Streptococcus**, **Escherichia coli**, and **Listeria monocytogenes**. These bacteria can be transmitted from the mother to the baby during birth.

**Why Each Wrong Option is Incorrect**
**Option A:** This choice is incorrect because it is a common cause of neonatal meningitis.
**Option B:** This choice is also incorrect as it is frequently associated with this condition.
**Option C:** Similarly, this option is incorrect due to its known association with neonatal meningitis.

**Clinical Pearl / High-Yield Fact**
It's crucial to note that **Group B Streptococcus** is a leading cause of neonatal meningitis, and pregnant women are screened for this bacteria to prevent transmission.

**Correct Answer:** D.