There Are Two Types of Metal Hydroxides,soluble Metal Hydroxides and Insoluble

There are two types of metal hydroxides,soluble metal hydroxides and insoluble hydroxides,both of which are strong bases.Which of the following statements is NOT true for strong bases?

A) Dilute solutions are completely dissociated.
B) Fe(OH) ₂ is a strong soluble base.
C) For strong base solutions with a concentration between 10⁻⁶ and 10⁻⁸ M,the pOH is determined using systematic equilibrium.
D) For strong base solutions with concentrations $\ge$ 10⁻⁶ M,the pOH is calculated from the concentration of the strong base.
E) For strong base solutions with concentrations $\le$ 10⁻⁸ M,the pOH is always 7.