What was a key intention behind the Louisiana Purchase?

The key intention behind the Louisiana Purchase was largely to remove French interference with trade. By acquiring the vast territory of Louisiana from France in 1803, the United States aimed to secure control over the crucial access points to the Mississippi River and New Orleans, which were essential for trade. The U.S. was concerned that French control would hinder its ability to trade and transport goods, particularly agricultural products, to markets. This acquisition effectively eliminated potential French competition and established a more favorable trading environment for American merchants, enabling westward expansion and economic growth.

The other options, while they may touch upon different aspects or impacts of the Purchase, do not reflect its primary diplomatic and economic intention as clearly as the aim to eliminate French interference in trade.