Which is NOT a red flag for abuse when assessing an injury? (a) A bruise in the shape of a belt buckle on a toddler's back (b) A child with a spiral fracture to the arm that was not brought into the ER until 1 week later (c) A head injury in an infant that the mother says resulted from a fall off the couch, but the father reports the fall was from a changing table (d) Multiple bruises in various stages of healing over the shins and knees of a 5-year-old