All of these are associated with what great inventor?

This question is incomplete, here´s the complete question.

Microphone, motion-picture camera, and motion-picture camera.

All of these are associated with what great inventor?

Thomas Alva Edison

Explanation:

Edison´s was one of the world's most prolific inventors, and some of his designs were fundamental to the development of sound His Carbon Microphone (1877-78) helped further develope Graham Bell´s telephone. And his Kinetoscope, Kinetograph and Kinetophone (1888-1890s), developed with his assistant William Dickson, allowed to watch and record motion pictures.

nations must cooperate to bring about and maintain world peace.

nations must not wage wars or commit war crimes in a desire to control other nations.

i think i know which options you have but if these aren't options let me know