The Germans imprisoned people in the concentration camps under different orders. Under which order would these people each be detained? A member of the clergy who opposed the nazi political policy would be detained under ___ detention. A group of Roma considered asocial would be detained under ___ detention.
A. curative
B. preventative
C. protective

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.