ï»¿ pH of weak bases

In the following multiple choice tests, we often abbreviate $H_3O^+$ by $H^+$ (Which is actually false, indeed, $H^+$ is always fully hydrated in water!)

How do weak bases react with water?

A) They give up protons while leaving OH - ions in solution B) They achieve an equilibrium with their conjugated acids C) They accept protons to form $H_3O^+$ D) They hydrolyse to form stronger bases

Here's the correct answer: b) They achieve an equilibrium with their conjugated acids