The correct answer is A) building shelters.
The pioneers’ first priority was building shelters.
Life was difficult for pioneers who decided to leave their former lands and travel to the west in the time if US history called "the westward expansion." The Oregon Trail was also a difficult road to cross. Many people could complete it. Hunger was a major issue.
Pioneers had to build their shelters to endure climate conditions, clear the land for farming. However, the opportunity to have their own portion of land motivated many farjmers, former slaves, and immigrants.
Answer: I would choose A.
Explanation:
"The federal power of the country is known as the central government" and "<span>Ronald Reagan was praised for making the economy strong during the 80s" are correct. </span>
In 1898, USS Maine was sunk in its arrival to Havanna as part of an oficial visit. President Mckingley had been intervening before in the Spanish-Cuban conflicts with the aim of preventing the start of a war. He had talked to the Spanish leaders with conciliatory words, trying to convince them of solving peacefully their conflict with Cuban insurrectionists.
Then, after the two explosions that caused the sunk of Maine, he abandonned his hopes for neutrality and spoke firmly and fiercely when blaming the Spanish for the incident and when adopting the resolution of declaring war to the Spanish.