The answer to your question is C.
In English pls this might fall in the Spanish section
The diaphragm is another term for the aperture, so it controls the amount of light passing into the film camera.
Answer:
The Correct answer is D. Jacque Copley
Explanation:
A quick google search of all the names A-C ruled out they did not paint the picture. When googling D that was the artist of this painting. Hope this helps but JACQUES-Louis IS NOT THE ANSWER!!! And I just did the test! Good luck!!!!