According to the passage, how many places did Vujicic officially appear to have talks in Vietnam?

Đáp án đúng là: B

Dựa vào đoạn “During his stay in Vietnam, from May 22-25, 2013, Nick Vujicic had talks with 4,000 business people with the message ―Never give up‖ at the White Palace Conference Centre in Ho Chi Minh City, spoke to 25,000 students from universities in Hanoi at My Dinh National Stadium under the theme ―Never give up desire‖ and 5,500 disadvantaged children at Quan Ngua Sport Palace. Also, he autographed a ball and kicked the ball to start the football tournament of disadvantaged children at Military Zone 7 Sporting Hall and talked with 4,000 children at Thong Nhat Stadium in Ho Chi Minh City.”