Hospitals I believe. I have been taking a test on economics and had this as a question as well. I'm not so sure, but I do believe that the correct answer would be the third one, hospitals.
Hopefully i'm right, and we both get it right haha. And well I hope this helped.
Answer:
He wants Zaroff to feel like he's being hunted. Rainsford has now tracked him down and his him on an even playing field. Zaroff is now the one who has to fight to stay alive. Aside from this, I think an ambush would be pretty difficult. Rainsford is unarmed and Zaroff is tucked away somewhere in his great chateau. A sneak attack probably wouldn't be successful.
Its happen cultural diffusion and from trade people can earn money
In Roe v. Wade, the Supreme Court ruled that it was unconstitutional for states to prohibit abortions in the first three months of pregnancy.