55 POINTS The Enlightenment saw "reason" as the sole trustworthy guide to arriving at truth, not
only about the natural world but also about human society. Why was this seen as such
a radical and challenging idea in 18th-century Europe?

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a is your answer!

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

answer; i believe the correct answer is (117);

the answer is d. amendments.