in the 1930s, the introduction of modern film emulsions created cameras that \na. recorded moving pictures…

in the 1930s, the introduction of modern film emulsions created cameras that \na. recorded moving pictures using projecting film.\nb. used modern film emulsions and sound.\nc. used 35mm film that was rolled into wheels and cranked through while they were recording.\nd. incorporated lighting and compositions into cinematography.\nplease select the best answer from the choices provided\na\nb\nc\nd

in the 1930s, the introduction of modern film emulsions created cameras that \na. recorded moving pictures using projecting film.\nb. used modern film emulsions and sound.\nc. used 35mm film that was rolled into wheels and cranked through while they were recording.\nd. incorporated lighting and compositions into cinematography.\nplease select the best answer from the choices provided\na\nb\nc\nd

Answer

Brief Explanations:

In the 1930s, modern film emulsions led to cameras using 35 - mm film rolled into wheels and cranked through during recording. Option a is about projecting film which is not the main result of modern film emulsions. Option b mentions sound which isn't the key aspect related to the new cameras from modern film emulsions. Option d about lighting and compositions isn't directly related to the change due to modern film emulsions.

Answer:

C. used 35mm film that was rolled into wheels and cranked through while they were recording.