Which of the following is an example of physical injury?

The correct choice involves "frequent bruising or fractured bones," which clearly represents physical injury due to the visible effects and the nature of the conditions described. Physical injuries typically encompass any harm or damage to the body's tissues, which can range from visible wounds to fractures. The mention of frequent bruising indicates a recurring issue with injury, suggesting a significant physical impact on the body.

In this context, bruising—while not always serious on its own—can indicate more severe underlying issues if it is frequent, especially when associated with broken bones. This option emphasizes not just the presence of injury but also the severity and ongoing nature, making it a definitive example of physical injury.

Other options, such as mild headaches and bruising that is not severe, while they may indicate some form of physical issue, do not illustrate the same level of injury severity or consistency as the correct choice. Emotional distress, on the other hand, does not qualify as a physical injury; rather, it pertains to psychological harm, which is distinctly different from physical manifestations of injury.