Which of the following could be the best title of the passage?Đoạn văn1/50Which of the following could be the best title of the passage?The History of the Imperial City of HueThe Imperial City of Hue - the Most Ancient City of Vietnam Hue Imperial City - A Must-see Attraction in VietnamThe Preservation of Hue Imperial CityGiải thíchC. Hue Imperial City - A Must-see Attraction in Vietnam