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: dominate east Asia
Explanation:
Answer: five Japanese planes
They shot down five Japanese planes, including four — two Nakajima B5N2 torpedo bombers, a Mitsubishi A6M2 Zero fighter and an Aichi D3A1 dive bomber — by 2nd Lt. George S. Welch of the 47th Squadron, 15th Pursuit Group.
Explanation:
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