Which three choices are positive effects of the pax romana ("the time of roman peace"), which lasted from around 27 bc until ad 180? a) slavery was abolished, the colosseum was built, and the empire expanded. b) christianity was banned, the society became classless, and the colosseum was built. c) the colosseum was built, the empire expanded, and more public works were constructed. d) the emperors waged wars with surrounding territories, more public works were constructed and the fewer farmers were needed.

A) Slavery was abolished, the Colosseum was built and the empire expanded. In this time, tranquility ceased to exist, slavery and the rulers built social and public works. C) The Coliseum was built, the empire expanded and more public works were built. It was the construction of the Coliseum and different works, the empire was also developed until reaching its maximum power and success. D) The emperors waged wars with the surrounding territories, more public works were built and fewer farmers were needed. The war ceased during a time of intense peace and tranquility, lived by the Roman Empire, where it reached its maximum economic development and territorial expansion.