Answer choice b is correct
The answer is: C. Not to try and fix them all, but also not participate in them
Thoreau just want people to know that evil exist and there we might not be able to eliminate them completely. By knowing this, we can always prepare ourselves to take care of evils when we need but not completely lose our mind over it. Simply by choosing not to participate is often enough because the more people do it, the less evil would exist in this world.
When a glacier retreats, and the sea fills the resulting valley floor.
Answer: Efficient
Explanation:
According to the given question, the resources are allocated for increase the production of the products and the resources are said to be efficient. The allocation of the resources are distributed in the form of input and output by changing the economy.
According to the given scenario, when the production of the one product are get increased by decreasing the another production of the goods and the services then, the resources are known as the efficient.
Therefore, Efficient is the correct answer.