Can someone help me answer these questions to the book “Brave New World”

Urgently need to do with 1-20. you very much!

Iam trying to  get  a call through to san francisco. (send, put)

Which choice is a major detail from paragraph two? a) the great wall is a large network of several walls and towers. b) the great wall looks like a long wall snaking its way across china. c) the great wall was constructed over hundreds of years beginning in 221 b.c. d) the great wall construction encouraged several independent kingdoms to unite.