At it's core, photography is . __ The chemistry of acid The calibration of motion The banana The manipulation of light

## Step 1<br />The question is asking for the core concept of photography. The options provided are: The chemistry of acid, The calibration of motion, The banana, and The manipulation of light.<br />## Step 2<br />We need to understand what photography is fundamentally about. Photography is a visual art form that involves capturing images using light. The camera captures light and focuses it onto a photosensitive surface, such as film or a digital sensor, to create an image.<br />## Step 3<br />Based on this understanding, we can see that the option "The manipulation of light" aligns with the core concept of photography. The other options, "The chemistry of acid", "The calibration of motion", and "The banana", do not accurately represent the core concept of photography.