Answer:
C: Program mode
Explanation:
Program mode is similar to Auto but gives you a little more control over some other features including flash, white balance, ISO etc.
Here's what the others do:
Aperture priority mode:
You as the photographer sets the aperture that you wish to use and the camera makes a decision about what shutter speed is appropriate in the conditions that you’re shooting in.
Shutter priority mode:
You as the photographer choose the shutter speed that you wish to shoot at and let the camera make a decision about what aperture to select to give a well exposed shot.
Manual mode:
Everything is controlled by the photographer.
Hope this helps!