Jamie is curious why she has found a shark's tooth in her backyard, which is several miles from the ocean. The white part of the model below shows the land area of Florida above sea level five million years ago, and the white and dark grey parts together show the land area of Florida above sea level today. FLORIDA PAST AND PRESENT

How does this model help Jamie understand why she found a shark's tooth in the backyard?

The model helps Jamie understand that barrier islands have formed over time.

The model helps Jamie understand that five million years ago, her backyard was below sea level.

The model helps Jamie understand that Florida had a much larger land surface five million years ago.

The model helps Jamie understand that Florida’s sharks’ teeth can only be found in Jamie’s backyard.