Research spearheaded by Dr. Norman Borlaug in the 1950s and 1960s helped develop high-yield wheat that is now in use all over the world. It was so successful that some credit Borlaug with saving more than 1 billion people from dying of starvation. What quality do ideas have that makes this claim so credible? Group of answer choices
1.They create incentives, transform human behavior, and allow people to pursue their own self-interest.
2.They aren't depleted when they are used, allowing them to spread quickly and without limit.
3.They are intangible, allowing them to easily be improved upon.
4.They don't require many resources to develop, just careful thought.