Was the most important contribution of the shang dynasty.

a) the great wall
b) writing
c) silk
d) gunpowder

The answer is B. The Shang Dynasty existed in 1750-c.1050 BCE in today's modern-day China. Writing during the dynasty became profoundly adopted (since its discovery) and has been the origin of Chinese distinctive writings today. At the time, the writings were etched on cattle bones (also referred to as oracle bones because they were used for divination), turtle shells. rice papers, and silk.  

the answer is b. hope this !