Can you help i am having trouble understanding

Which would have been a push factor of immigration ?

In which sentence is the italicized word used correctly? a) the sloth is a benefactor that primarily feeds on vegetation, insects, and small birds and reptiles. b) the flood victims were eternally grateful to their benefactors who provided them with food, shelter, and clothing. c) the spectators in the stadium all cheered when the benefactor announced the game would go into overtime. d) the benefactors visiting the laboratory were impressed by the complex equipment the scientists used.

After world war ii, many japanese territories were increasingly difficult for japan to control. placed under the control of other nations. granted independence from japan. supportive of the us occupation.