The purchase of the louisiana territory by thomas jefferson marked the removal of all french control from north america. the expansion of the united states to the pacific ocean. the removal of all spanish control from north america. the first westward expansion of the united states. need answer

The correct answer is the first westward expansion of the United States.

The Lousiana Purchase was when President Thomas Jefferson bought 800,000 square miles of territory from the French. This purchase, in 1803, was the first part of westward expansion. Before this time, the United States only consisted of the 13 original colonies that used to be part of the British Empire. However, this purchase started to expand America's borders. This would result an era of westward expansion (also known as Manifest Destiny) in the US. This would take place throughout the 19th century.

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.