Respuesta :
The correct answer is option B. Airplanes changed the way the world does business by making long trips in less time. Before commercial airlines existed, travelling meant taking months off just to get from place a to place b. Because travelling was a time consuming experience, not everyone could do it. With the emergence of commercial airlines, business can happen more easily, because it is not a problem anymore for a person to travel from America to China or from Indian to Canada.
