Answer:
C. were hunters and gatherers
Explanation:
they thought if one country in an area fell to communism the countries surrounding the country would also fall to communism which lead to the red scare.
The "many islands" people are also called D. Polynesians.
Answer:
Famine
Explanation:
“The policies of the Great Leap Forward, the failure of the government to respond quickly and effectively to famine conditions, as well as Mao's insistence on maintaining high grain export quotas in the face of clear evidence of poor crop output were responsible for the famine.” Says Wiki.
https://en.wikipedia.org/wiki/Great_Leap_Forward
C. Abraham Lincoln was the president who made it a priority to complete the transcontinental railroad.