Why was Jacob given streptomycin, not penicillin?
a) Francisella tularensis produces β-lactamase.
b) Antibiotics are unable to penetrate the capsule of Francisella tularensis.
c) Francisella tularensis has flagella and can "outswim" the antibiotics.
d) Francisella tularensis produces a neurotoxin to neutralize penicillin.