Can someone help me with my Newsela please?

1)Which sentence from the section "Native Americans Lose Their Land" BEST explains why 100,000 Native Americans were forced from their homes during the 1830s?
A-The move included Cherokee, Creek, Chickasaw, Choctaw, Seminole and other nations.
B-The U. S. government wanted ancestral Native American land for farmland.
C-Estimates based on tribal and military records suggest that approximately 100,000 Native Americans were forced from their homes.
D-"The death of many people on the Trail of Tears sparked empathy for the Irish people in their time of need," organizer Vanessa Tulley wrote.

2)Which section from the article BEST explains why so many Irish people have contributed money to help the Navajo Nation fight the coronavirus?
A-"Choctaw Nation Aids Irish"
B-"Coronavirus In Navajo Nation"
C-"Fundraising Campaign"
D-"Longstanding Relationship"

1)Which sentence from the section "Native Americans Lose Their Land" BEST explains why 100,000 Native Americans were forced from their homes during the 1830s?

2)Which section from the article BEST explains why so many Irish people have contributed money to help the Navajo Nation fight the coronavirus?

Explanation:

The most infamous forced relocation is known as the Trail of Tears where Cherokee, Creek, Chickasaw, Choctaw, Seminole and other native American nations were forced out of their ancestral land because members of the US government believed that their land was needed for agriculture. The best way they figured out to get the land was to expel their rightful owners using force.

Even though native Americans had suffered so much in the previous decade (1830s), the Choctaw Nation donated $170 (equivalent to $5,000 today) to the Irish during the great Irish famine. Many Irish farmers lost their potato crops and many people in Ireland were starving to death. Irish descendants still remember the generosity of the Choctaw Nation even in times when they themselves were suffering a lot.

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what are the others?