Which of the following might have been in direct conflict with the united states stance on isolationism at the onset of world war ii?

The most likely answer to this question is answer b, selling weapons to other countries. While the U.S claimed to the rest of the world that it was to remain neutral, it secretly sold weapons to Britain through the lend lease act

i think it is a system for harvesting crops more easily

australian plates collided into eurasian plates, and the himalayas formed. the andes mountain range the himalayas and the islands of japan form differently. the andes mountain range formed at the convergent boundary of an oceanic plate and continental plate.