The correct answer is $\boxed{\text{D}}$.
The first word, “insensible”, means “not able to feel or perceive things”. The second word, “Chetan”, is a name. The third word, “to”, is a preposition. The fourth word, “scheme”, means “a plan or method”. The fifth word, “is”, is a verb.
The correct order of the words is “Chetan is insensible to the scheme”. This means that Chetan is not able to feel or perceive the scheme.
The other options are incorrect because they do not make sense. For example, option A, “25134”, is not a grammatically correct sentence. Option B, “35241”, is also not a grammatically correct sentence. Option C, “14523”, is a grammatically correct sentence, but it does not make sense in the context of the question. Option D, “25314”, is the correct answer because it is a grammatically correct sentence that makes sense in the context of the question.