Short answer is that it is option D.the best chance that he would find anything is an iron tool for digging. It is because he would not leave farm animals to die, it cant be a packet of seeds either because you said it would be ancient. paper would have rotten and plastic was not available back then...a newspaper article would be very unlikely because they wouldn't read where they farmed....
Answer:
The "green revolution" is not developed enough for the US and many other countries to support it.
Explanation:
Asides from energy storage, certain countries can exploit the natural resources in order to improve their economic output. Think of it this way: if you are a developing country, coal mines/power plants can create thousands of jobs as opposed to solar panels, which require specialized labor. In countries like the US, lobbying and political interests have actually slowed down the progress for green transitions. However, we will get there.
Also note that we are not bring coal at the same rate we were a couple uears back. More efficient cars and methods of manufacturing have decreased the overall pollution.
