Which of the following is NOT true of Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae?
O All can have capsules that protect them against phagocytosis
O None of the other four (All are true)
O All three can be found as normal microbiota of the throat (pharynx)
O Together, they account for about 70% of bacterial meningitis cases
O When causing meningitis, they can often be seen microscopically in the cerebrospinal fluid