The diaphragm is another term for the aperture, so it controls the amount of light passing into the film camera.
What do you mean by that ?)
Black, it will slowly maje it darker
Answer:
C. Spiral
Explanation:
Although I can't see the picture too clearly, it seems that every other line on the answer choices is present; except a spiral line. Curved lines for shoulders and hair, bold lines with shading, and vertical lines for the neck. Hope this helps.