Here are afew things, Under water warfare sub, the chronometer, and the toilet.
French revolution was a widely known struggle under the ruler Louis XVI. The conflict was between the monarchy sector and the noble men whom the tax system is imposed. This provoked everyone to take the freedom to express their complaints. Furthermore, there were two social groups that emerged at that time: the aristocracy and the bourgeoisie. Answers are C and D
I don’t know sorry but there’s a app to help I think
Economic - several writers have noted the role of monastics as entrepreneurs.
Social - any good text about medieval monasticism can give you plenty of specific examples of this.
Missionary - some orders were more active in this regard than others.
Cultural - this is perhaps the best known of the work of medieval religious orders and included the creation of the great illuminated manuscripts of the age.