To achieve photos with depth of detail and prominent shadows, the best conditions would be:
A. noon on a sunny day
During noon, the sunlight is direct and harsh, which creates strong shadows that can add depth and contrast to your images. While the light can be very bright, it can also help in capturing intricate details in the subject. However, depending on the specific look you want, you might also consider other times of the day, like early morning or late afternoon when the light is softer. But from the options given, noon on a sunny day would generally provide the most prominent shadows.