I am not totally sure about this one but I believe it would be p<span>rops used in the Renaissance period were much more elaborate than those used by the Greeks and Romans.
The renaissance was, in many ways, more advanced than Greece and Rome because </span>the Renaissance was more of a continuation of the discoveries and ways of life that had existed during the Greek and Roman times. As such, it would make sense that the Renaissance had more complex theatre props. Also theatre was flourishing during the Renaissance so better props would have been made.
Acts that what I am guessing
Answer is b because it separates the desert and the savana
His efficient assembly line made cars a lot cheaper to produce