Answer:
C bother
Explanation:
To bother a person means to distract/disturb the person or be a source of inconvenience to them. As used in the text above, restaurants have it in their rules that photographers do not use flash when they take pictures of their meals because they believe that that would be a source of disturbance for their customers.
This rule was understood by the photographer Chuck Arendt and that was why he desisted from using flash when he photographed food at the restaurants.