Sentence Improvement

In the given question, a part of the sentence is printed in bold. Below the sentence alternatives to the bold part are given at (A), (B), (C) and (D) which may help improve the sentence. Choose the correct alternative. In case the given sentence is correct, your answer is (E) i.e. No correction required. 

In the following question, a part of the sentence is bold. Four alternatives to the bold part are given at (A), (B), (C) and (D) which may improve the sentence. Choose the correct alternative. In case the given sentence is correct, your answer is (E) i.e. No correction required. 

At the start of his presentation, it seemed that he’s out of his mind, but when he finished, we saw that there’s method in his madness. 

A. After the presentation, we realised that he deliberately chose to be vague and absurd. 

B. Though his presentation appeared a little absurd in the beginning, we ultimately found out that he had a rational purpose behind it 

C. There was a stark difference between what he started with and how he concluded his presentation. 

D. Since he was not completely in his senses, he presented in an awkward manner. 

E. None of these