HISET Social Studies Practice 2025 - Free HISET Social Studies Practice Questions and Study Guide

The construction of the Grand Canal is indeed a significant achievement of the Sui Dynasty in China. This massive engineering project was initiated to facilitate the transportation of goods and agricultural products between the northern and southern regions of the country. The Grand Canal, which connected several major rivers, played a crucial role in enhancing trade, promoting economic stability, and enabling the central government to control the vast empire more effectively. The project was integral to unifying China, as it allowed for the easy movement of troops and resources, further solidifying the Sui Dynasty's practical and administrative legacy.

Other options, such as advancements in algebra and geometry, the construction of the Great Wall, and the establishment of silk production, do not accurately represent the primary contributions of the Sui Dynasty. While these elements have significance in Chinese history, they were either developed in different historical contexts or attributed to other dynasties.