It's an article about 2 schools of economics. I don't understand Q15 which answer is A. I chose B.
A. The environment's ability to yield raw material is limited.
B.Natural resources are an external constraint on economics.
If you guys are looking to listen to or read the transcript of Obergefell v. Hodges, here's a link: http://www.advocate.com/politics/2015/04/28/listen-oral-arguments-obergefell-v-hodges