Answer: D. guard the tomb of emperor Shihuangdi.
Step-by-step explanation:
The Terracotta Army refers to the thousands of life-size clay models of soldiers, horses, and chariots which were deposited around the grand mausoleum of Shi Huangdi, first emperor of China and founder of the Qin dynasty, located near Lishan in Shaanxi Province, central China. The purpose of the army was likely to act as guardian figures for the tomb or to serve their ruler in the next life.