Some sentences are given in the question below. Find the sentence that is not relating to the main theme and join the rest to form a coherent passage. If the given sentences are correct as it is, then select 'option 5'. If the sequence that is correct is not given, select 'option 4'.

(A) It was disregarded initially by the scientific community /(B) Scientific theories need a lot of verification /(C) Stephen Hawking was one of the greatest thinkers of all times /(D) But after a lot of research this theory was accepted /(E) He had proposed a theory that said a single function could solve all problems.