Dont quote me on this but i believe the answer is c
Could you rephrase your question please?
This is correct.
Machiavelli was an Italian political philosopher whose famous work, the Prince, is an in-depth look at what is necessary for a ruler to be effective, both in terms of ruling a people but also in doing what needs to be done.
Because Slate was more common in wet microclimates.
Hope I Helped :)