I don't know which autobiographical piece of art you are talking about, but generally an autobiography is about the writer himself.
So, having that in mind, I'd say that this is an autobiographical piece of art because <span>c. It shows the pain and suffering experienced by the artist. </span>
The answer is D I believe
The diaphragm is another term for the aperture, so it controls the amount of light passing into the film camera.
A note head, a stem and a flag
