Answer:
B. He standardized it.
Explanation:
Qin Shihuangdi, the first emperor of China, is known for implementing various reforms to centralize and standardize systems across his empire. One of the significant reforms he undertook was the standardization of currency.
Before Qin Shihuangdi, China had a variety of different forms of currency, including shells, grains, and metal objects used for bartering. Qin Shihuangdi introduced a uniform system of currency made of bronze coins called "banliang" (半两). These coins were of standardized weight and shape, making them interchangeable and widely accepted throughout the empire.
By standardizing the currency, Qin Shihuangdi facilitated trade and commerce, promoted economic stability, and centralized financial control under his rule.