Answer:
The Roman Roads, which extended all over the Roman Empire, and were built as the Empire expanded, helped the military expansion of the Roman Republic simply because they made logistics easier: military goods such as weapons, horses, and the soldiers themselves, could move around more quickly, making invasions of foreign territories more rapid, and allowing for a faster replenishment of troops in needed cases.
Before the Louisiana Purchase, Louisiana was a French territory, and Napoleon threatened to block American access to the port of New Orleans on the Mississippi River. This scared Americans, because the nation wanted to expand the exports of American products.
President Jefferson sent diplomats to France to bargain access to the River, instead, Napoleon offered the sell of Louisiana. France needed money because of the war against Britain and then, the US bought Louisiana for 15 million dollars.
The Purchase impacted the Western Expansion since it doubled the size of the US and added more 14 states to the Union. It permitted the US to have more land to plantations and increase commerce and trade.
The philosophy of “Manifest Destiny” also became popular with the belief that Americans were destined to expand their territory.
I believe the correct answer from the choices listed above is option D. It is Caesar Augustus who changed Rome from a republic to an empire after the Senate gave him power. <span> Augustus led Rome's transformation from republic to empire during the tumultuous years following the assassination of his</span>great-uncle<span> and adoptive father Julius Caesar.</span>
Hope this answers the question. Have a nice day.