Using Shutter Priority to determine exposure means:

• A. You set the shutter speed and the camera chooses the aperture
• B. You set the aperture and the camera chooses the shutter speed
• C. The camera sets ISO
• D. You set White Balance

Answer: (A)

Shutter Priority is the mode you use when you want to control how motion is captured. You choose the shutter speed, and the camera automatically selects the aperture to achieve a proper exposure based on the lighting and your ISO setting. The shutter speed you pick determines whether moving subjects are crisp or blurred, while the aperture adjusts to let in the right amount of light to balance the exposure. If you need a fast shutter to freeze action, the camera will open the aperture wide if possible; if the scene is bright, it may stop down to keep exposure correct. This approach is different from Aperture Priority, where you pick the aperture and the camera sets the shutter speed, or from Manual, where you set both.