Answer:
B. A liar will not be believed even when telling the truth.
Step-by-step explanation:
In the fable "The Shepherd's Boy and the Wolf," the protagonist tells a lie several times and makes fun of the villagers, who do not believe him when a wolf actually attacks the sheep. The reason is that the Shepherd's Boy has fooled them so many times that the villagers think he is lying again.
The rest of the alternatives are incorrect because the fable does not involve careful planning or thinking, or speaking out.