What Would Be Considered a Typical Platelet Count in a Patient

What would be considered a typical platelet count in a patient with PNH?

A) >500 $\times$ 10⁹/L
B) <50 $\times$ 10⁹/L
C) 50-100 $\times$ 10⁹/L
D) 100-400 $\times$ 10⁹/L
E) None of the above