Why Was Pinckney's Treaty of 1795 Significant

Why was Pinckney's Treaty of 1795 significant?

A) The treaty lowered the price of western lands,making them affordable to farmers.
B) Through this treaty,the English stopped arming the Indians around the Great Lakes.
C) Through this treaty,Jefferson and Madison negotiated the Louisiana Purchase.
D) The treaty opened the Mississippi River and New Orleans to American trade.