Which type of fracture typically occurs in children due to soft bones?

A greenstick fracture is a type of incomplete fracture commonly seen in children, primarily due to their softer and more flexible bones. In children, the bones are not fully ossified and can bend rather than break completely. This results in a greenstick fracture, where one side of the bone bends and breaks while the other side remains intact, akin to how a young green twig may bend without breaking.

In contrast, transverse fractures involve a straight break across the bone, comminuted fractures consist of multiple fragments of bone, and depressed fractures usually occur in flat bones, such as those in the skull, resulting in a portion of the bone being pushed inwards. These types of fractures are more typical in adults due to the greater force of impact required to break fully matured bones. Thus, greenstick fractures are specifically associated with the softer bone structure found in children, making them the correct answer for this question.