A quiet 3-year-old is brought in for a routine check-up when you notice a fresh bruise in the axilla and bilateral bruises over the upper back that appear slightly older. There are brown bruises over his shins as well. His mother said this happened when he fell off of a couch. What diagnosis should be considered?

A) Von Willebrand's disease
B) Normal childhood bruises from activity
C) Abuse
D) Seizure disorder