In the war against japan, the u. s relied on a strategy of. a) using china as a jumping ground to invade japan. b) invading japanese colonies in the south pacific. c) island hopping across the south pacific. d) heavy bombing from chinese military bases

The correct answer among all the other choice is C) island hopping across the South Pacific. In the war against Japan, the U.S relied on a strategy of island hopping across the South Pacific. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help. 

African americans at the time just came out of slavery and needed money to provide for there families. so they joined for the money mainly.