Which Statement Is Incorrect Regarding Meningitis

Which statement is incorrect regarding meningitis?

A) 90% of cases occur in the first 5 years, with peak at 6 months of age.
B) Damage is due to the inflammatory response not bacterial toxins.
C) Brudzinski's sign is involuntary hip flexion with passive neck flexion.
D) CT may be normal even in the presence of elevated ICP in up to 45%.
E) LP is always abnormal with bacterial meningitis.