Answer:
refrigeration and gmos (this is based on research but it is souly opinion based because it all depends on what you think is the most important. please accept this answer with discretion.)
Explanation:
refrigeration because it helped improve shelflife for food all across the world.
gmos because it saved many crops from complete devastation and saved farmers from endless debt and depression (of money).
The answer is D. Environmental
The answer is B, social cognitive theory.
Hope this helps :)
That answer is True, cancer can't be prevented but doing all of the things they describe helps a lot.
