1900's is when they increased most
Both a and c are correct, however I think that A would be the most correct answer in this case.
Answer:
Critical thinking is the analysis of facts to form a judgment. The subject is complex, and several different definitions exist, which generally include the rational, skeptical, unbiased analysis, or evaluation of factual evidence...
Explanation:
Hope this helps you!
I really don’t know that answer but hope u find it
If you're asking about sovereign nations, then false.
