Answer:
Sample B
Explanation:
When people put time, money, or effort into reaching a goal, such as helping feed people in poor countries, they need scientific evidence to help make decisions. This is because the solution that seems right might not actually be the best one once all the evidence is studied.
While it seemed that the tallest plants or the plants with the largest ears would produce more corn, the scientific evidence showed that this was not true, at least when the corn was attacked by the corn rootworm.
The charity group's research shows that Sample B resists the corn rootworm best and therefore produces the most corn per acre.