I similarity between Cindy Sherman and Tyler Mitchell was

I can see that there are no choices.

A similarity between Cindy Sherman and Tyler Mitchell is that they are both Americans who are into photography. They both practiced fashion photography and became involved in film projects.

Explanation:

Cindy Sherman is an American artist who is focused on creating "self-portrait photography." Her interest in photographing herself began after she learned painting. Later on, she became popular and part of her career was creating photographs for Harper's Bazaar in 1993. She also shared her interest in film photography and even became a film director.

Tyler Mitchell is an American photographer. He learned photography at a tender age of 9. He also learned making videos through Y.ouTube tutorials. He then became involved in companies like Marc Jacobs, Nike, Converse and Givenchy. He also ventured into film projects which centered on autobiographical topics.

So, this explains the answer.

a and c?

i think it is a and c