In each of the sentences given below a word is in quotion marks. Below it four choices are given. Pick up the one which is most nearly the same in meaning as the word in quotion marks and can replaces it without altering the meaning of the sentence.His visit to foreign countries brought about a "sea-change" in his outlook and his attitude to people.

• A. complete change
• B. partial change
• C. favourable change
• D. unfavourable change