Which of the Following Makes the Kidneys of a Child

Which of the following makes the kidneys of a child more susceptible to trauma compared to those of an adult?

A) The kidneys are less protected in the child due to unossified ribs and less fat padding.
B) Backward falls are associated with direct compression of the kidneys.
C) The kidneys are much smaller and closer to the surface.
D) There are not as many renal tubules, and the kidneys themselves are not as thick as the adult kidneys.