The correct answer is: E. No error
The sentence is grammatically correct. The word “done away with” is a phrasal verb that means “to get rid of something.” In this sentence, it is used to say that honesty and integrity are qualities that cannot be gotten rid of. The word “hence” is a conjunction that means “for this reason.” In this sentence, it is used to connect the idea that honesty and integrity are qualities that cannot be gotten rid of with the idea that they assume a lot of importance.
The other options are incorrect because they suggest that there is a grammatical error in the sentence. Option A suggests that the word “Honesty” should be capitalized. Option B suggests that the word “integrity” should be capitalized. Option C suggests that the word “done away with” should be hyphenated. Option D suggests that the word “hence” should be removed.