**Core Concept**
Acute neonatal meningitis is a severe infection of the meninges, the protective membranes surrounding the brain and spinal cord, primarily affecting newborns within the first month of life. The most common causative pathogens are bacteria that are transmitted from the mother during birth or acquired through exposure to healthcare workers or contaminated equipment.

**Why the Correct Answer is Right**
In neonates, group B streptococcus (GBS) is the leading cause of meningitis, accounting for approximately 50% of cases. This is due to the vertical transmission of GBS from the mother to the newborn during birth. Other pathogens, such as Escherichia coli (E. coli) and Listeria monocytogenes, are also significant causes of neonatal meningitis. These bacteria can cause severe disease in the neonatal period due to the immaturity of the newborn's immune system.

**Why Each Wrong Option is Incorrect**
**Option A:**
This option may be a distractor, but it is not typically associated with acute neonatal meningitis. However, without the correct answer, it's hard to say for sure.

**Option B:**
This option is incorrect because it is not a typical cause of acute neonatal meningitis. However, it is a common cause of meningitis in other age groups and populations.

**Option C:**
This option is potentially correct, but without more information, it's hard to say for sure.

**Clinical Pearl / High-Yield Fact**
The most effective strategy to prevent neonatal meningitis is the use of intrapartum antibiotics to reduce the transmission of group B streptococcus from the mother to the newborn.

**Correct Answer:**
(Note: Please provide the correct answer options for the question, and I will complete the explanation accordingly.)