EXERCISE 3_COMMUNICATION:Choose A, B, C or D that is the best response to each of the following exchangesCâu hỏi - A: Do you think we are healthier today than people were fifty years ago? - B: ___________________. A. Life fifty years ago was much harder than nowadays B. People always want to live long and stay healthy C. People in the past had to overcome lots of hardship D. Not really. People nowadays live in a more polluted environment