Final answer:
Any leaks of white light into the darkroom can cause film fogging, film reticulation, overdeveloped films, or underexposed films.
Step-by-step explanation:
Any leaks of white light into the darkroom can cause film fogging, film reticulation, overdeveloped films, or underexposed films. Film fogging occurs when the white light exposes the film, resulting in a foggy appearance with an interference pattern. Overexposure happens when there is too much light, causing the photo to be too bright or blown out. Underexposure occurs when there is too little light, resulting in a dark or dull photo. Therefore, the correct answer is Option 4: Any of the above.