I believe postulates are given or assumed true statements without a proof. And a theorem can be proven. You do this in geometry if I remember correctly.
In my opinion I think presidents should have their health evaluated instead of just a age. The maximum age shouldn’t be just a age it should be if the person can still function and run everything properly despite being older. Although if I had to set a age i would say 85.
The correct answer is option A. Conveyed the mood of each scene.
The phonograph was not used to play sound on films until the beggining of the 20th century. Instead, a group of musicians would be brought along with film presentations, as well as a "rancoteur" - a person who would explain the actions and themes of the film to the audiences. The primary purpose of live music during films was to set the mood in accordance the events on screen.
