What was a reason Tribal people from the Great Plains developed a sign language?

A.
Native people of the Great Plains all spoke the same language.
B.
Some Native people wished to trade with nations speaking other languages.
C.
Tribal nations of the Great Plains did not want to speak to Spanish colonists.
D.
Native people of the Great Plains had beautiful hands.

answer: the ocean

explanation: if you map out 30 n and 40 n latitude, you will get the ocean

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years

richard milhous nixon (january 9, 1913 – april 22, 1994) was the 37th president of the united states, serving from 1969 to 1974, when he became the only president to resign (quit). he is also known for corruption and the watergate scandal which resulted in the public losing trust in him and his resignation.