Which describes an achievement of emperor yangdi that unite china? a. he made marco polo an honored guest at the imperial court in beijing. b. he introduced terraced farming to produce more food. c. he designed a plan for a series of interconnecting canals. d. he built the great wall of china to keep out invading mongol hordes.

martin luther king (1929-1968) was an activist for the african american rights, mr. king has a profile of a kind leader that built a tenacity, respect and full of hope future. he was an activist through civil disobedience and no violence pressure mechanisms. he tried to build a more egalitarian and fair society. his efforts carried a reivindication message of the civilian rights to every west corners. for that reason, he won the nobel prize in 1964.

b - those executed came from every social and economic class