While growing up, an overweight Monica was playing with Ross on their trampoline. Monica and Ross jumped simultaneously, inducing a collision with each other after which Monica was thrown from the trampoline. She fell right on the heel of her right foot upon which she immediately collapsed with a resulting fracture. What is the most probable cause of her immediate collapse from the following? (Note: Ross has strong bones, he is a paleontologist - he is fine).
Select one of the following: