WW2 set the economy into a big progression era after the the Great Drepression. Companies were hiring worker and producing goods to support the soldiers. When the soldiers returned from war, the women left the factories and started families. This opened jobs for the returning soldiers and launched a big population boom “the baby boom” which ultimately resulted in more consumerism.
When the prehistoric people trekked into south America toward the end of the ice age,they found a wondrous,lush continent inhabited by all manner of strange creatures like giant ground sloths and car size armadillos.
These hunter gatherers proceeded to behave like invasion species,with their population surging the crashing as they relentlessly depleted natural resources.
Then after that alot more people mustered that area,with crops and animals
I think your answer should be A. Nullification. (basically Null = void = Not accepted). Hope this helps! ^-^