Respuesta :
Planting millions of trees. The Qing dynasty was responsible for the Great Wall as well as the opium tensions with the British, while the Sui dynasty build the Grand Canal. This leaves the trees to the Ming.
The correct answer sare The Great Wall of China, creating the Grand Canal, and Planting millions oftrees. Fighting the British over Opium came much much later, in the modern era, while marble statues were not as common in China as they were in let's say Greece or Rome. Chinese people used clay, like in the terracotta army.