Answer: The statement which best describes one way the farm will be affected by using this new fertilizer is:
A. Marginal benefits will increase for each harvest.
Based on the given text, we can see that there is the development of a new type of fertilizer which was made by a farmer and there is a difference in cost which would have an effect.
With this in mind, we can see that because it costs 20% more to produce and has better results, then the effect this would have is that the marginal benefits would increase for each harvest.
Therefore, the correct answer is option A
excerpt from Brainly.com