How did the shaded area on the map become part of the United States a. It was gained from Mexico after the Mexican War
.b. It was ceded to the United States by Spain
.c. It was purchased by the United States from France.
d. It was won from the British in the Revolutionary War.

I'll include the picture on the bottom

c.It was purchased by the United States from France.

Explanation:

The shaded are is the region that USA bought from France during the Louisiana purchase in 1803. At that time, USA bought it for 15 million USD. (But it's around $342 million if we convert it to current valuation.)

Considering the amount of land and resources that United States got from the Louisiana territory, this was considered as one of the best bargain that United States Government ever made in history.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.  

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.