Well I would personally say the engineering industry, as during the wartime technology needs to be developed/improved in order to defeat the opposing side.
B. Because In the social contract rousseau argues that laws are binding only when they are supported by the general will of the people
Well, usually (I say usually) many laws make the disclosure of confidential necessary. Often a court may rule or require that confidential information must be provided in order to proceed in a case. For example, if during a murder case, confidential medical records could be used (within the confines of the court) to prove a motive or could be used to identify a killer. In my home country (Australia) I am not sure about this but in the UK if this information involves a child's wellbeing and the pros outweigh the cons then it can be release/used however you will have to be prepared to justify your actions.
Most likely A because immigrants had the advantage of Settlement Houses. Settlement Houses were places of not necessarily refuge, but of shelter and protection where they were taught by Americans themselves about the culture and ways of the U.S. I'm sure they learned things from other immigrants here and there, too, but culture classes were what they write about in textbooks.
234:922 in in the book of law and rights 1978 paragraph 3
