What does Einstein's late speaking in childhood challenge?

Correct answer: The idea that early weakness always becomes failure

The governing idea is that an early difficulty does not determine a person's complete future. Einstein spoke late and, as a child, appeared unusual to some people, yet he later developed exceptional powers of thought and became a world-famous physicist. Therefore, option A is correct because his later achievement challenges the assumption that a weakness noticed in childhood must inevitably lead to failure. Option B is unrelated to speech, while C concerns children's preferences rather than ability. Option D is also unsuitable because the incident says nothing about the age at which science can be studied. The lesson uses Einstein's childhood to show that development can be individual and that patience is more reasonable than quick judgment.