Which adjustment might enhance an image taken in bright sunlight?

Choosing to adjust the exposure for an image taken in bright sunlight can enhance the image significantly. Bright sunlight often causes images to appear washed out or overly bright in certain areas, leading to a loss of detail in the highlights. Adjusting the exposure allows you to precisely manage the brightness of the entire image, ensuring that details in both the light and shadow areas are maintained.

By decreasing the exposure slightly, you can bring back details that may have been lost in the highlights, improving the overall contrast and depth of the image. Furthermore, this adjustment can help in correcting any overexposed areas, making the image appear more balanced and visually appealing.

While other adjustments like Color Balance and Curves can also improve certain aspects of the photo, they may not address the fundamental problem of brightness as directly and effectively as adjusting the exposure would. Adjusting Hue/Saturation could enhance the color intensity and vibrancy, but it wouldn't resolve issues related to the overall light and detail retention in the image. Thus, fine-tuning the exposure is often the most straightforward and impactful adjustment for images taken in bright sunlight.