B, C and D are the correct answers hope I can help!
True. it was ruled that blacks and whites could be expected to go to separate places as long as they were equal<span />
Answer:
The miasma theory (also called the miasmatic theory) is an obsolete medical theory that held diseases—such as cholera, chlamydia, or the Black Death—were caused by a miasma (μίασμα, ancient Greek: "pollution"), a noxious form of "bad air", also known as night air.
