As per the context of the given lines, the most closest or nearest meaning to the word 'unintelligible' would be 'confused'. The word 'unintelligible' denotes 'something that not capable of being understood/explained or unclear' which is quite similar to the denotation of 'confused' which gives 'something that could not be thought or understood clearly'. Therefore, the sentence would give the similar meaning even after exchanging the words and denotes 'Of all this confused(unintelligible/inexplainable) world/Is lightened...'. Therefore, <u>option B</u> is the correct answer.
