Which best describes how monarchs such as frederick the great, catherine the great, and joseph ii adopted the concept of enlightened despotism during the 18th century?

the answer wold be b) travel among nations should be regulated by an international organization

silk

indigo  

rice

all the other answers are wrong

the answer is d because for c the actors can't love acting for the other's audience their not even in the same show, it can't be b either because the question is talking about the actors not the audience, and it can't be a because   it's not specific enough