The answer is B the invention of balance made trade easier
Answer:
John Ross
John Ross (Cherokee chief)
John Ross
Spouse(s) Quatie Brown Henley (born c. 1790–1839) Mary Brian Stapler (1826–1865)
Relations Great-granddaughter Mary G. Ross; Nephew William P. Ross
Children 7
Known for opposition to Treaty of New Echota; Trail of Tears; Union supporter during American Civil War
Explanation:
I think I got the wrong answer nvm Explanation: