The right answer is intravenous penicillin G.
B streptococci are gram positive bacteria, which are most often observed as chains in the optic microscope. They are usually found in the intestines and genitalia.
Streptococcus B bacteria are usually harmless in adults, yet they can cause in newborns the serious disease. This is why medication with penicillin G is needed to prevent this disastrous effect.
