The kind of films and radio programs that became popular during the Great Depression was escapist themes that allowed people to forget the depression for a little while. The correct option among all the options given in the question is option "b". It was a very tough time for the Americans during the time of Great Depression and so other forms of entertainment was out of question.
The Hittites were the first society to use "cannon" as a weapon, since one of the things they were most known for was their use of iron in both general industry and weaponry.
Treaty of Versailles and the break up of the Ottoman Empire--The Ottoman Empire fought on the Central Powers side and with Treaty of Versailles were forced to break up as an empire.
The remaining pieces of the crumbling Ottoman Empire was further broken down and created 3 new countries--Turkey, Iran, and Saudi Arabia. This was done based on religion and ethnic origins to create the three new states.