Which of the Following Is NOT a True Statement Regarding

Which of the following is NOT a true statement regarding trade during the Song era?

A) Trade by sea was significantly cheaper than trade via overland routes such as the silk roads.
B) Sea vessels could transport far more goods than any overland vehicle.
C) Northern China became the center of Chinese trade as a result of its easy access to navigable waterways.
D) Goods manufactured in the south of China had ready access to canals and seaports.