Answer:
Option B, interrupted the free movement of gold, is the right answer.
Explanation:
- A monetary system in which the standard economy unit is based on a fixed amount of gold is known as the Gold Standard.
- Throughout the Nineteenth and the Twentieth Century, many countries used this system of Gold Standard.
- With the end of 1913, the gold standard was at its zenith but the First World War caused many countries to abandon it.
The answer is option 3: A technique for making porcelain was perfected.
The art of making porcelain prospered in both periods. A lot of innovations were made in forms, glazes, decorative techniques methods of production and kiln technology.
During the Tang Dynasty, porcelain kilns were constructed all over the country and a type of vessel with molded decorations on it became very popular, which was made using an "upside down" and the coal was used as kiln fuel.
By the Song period, the manufacturing process was standardized (base-making, glazing, ingredient control, and temperature maintenance). In addition, the industry was divided into five types of kilns that had several features for glaze coloring and pattern design.
Building canals through it
