Answer:
The correct answer is option - a. Streptococcus agalactiae.
Explanation:
Meningitis is a viral or bacterial infection of the fluid around the spinal cord and brain and causes the inflammation of the protective membrane of the covering of the brain and spinal cord.
In newborn babies, it is caused by many strains but the more common is streptococcus agalactiae. Streptococcus agalactiae is a coccus bacteria spread from commonly by mother to newborn or by the contaminated food.
Thus, the correct answer is option - a. Streptococcus agalactiae.