Answer: i think A.
Explanation: The islands of the Pacific have gradually been gaining independence: two countries in the 1960s including Western Samoa, six countries in the 1970s, and three countries in the 1980s. The most recent country to win independence is the Republic of Palau, which gained nationhood in 1994.
One of the most significant challenges is building an airplane had to do with "propulsion", since the technology that allowed motors to have enough energy to lift an airplane into the sky with a passenger wasn't available for most of history.
A. The laws passed by the U.S. Senate
Answer:
a. "Safety in numbers"
Explanation: They stayed in wagon trains together to be more protected and to make sure no one got stolen by Native Americans.
