Through a Tunnel is a coming of age story because it follows the life of the protagonist, starting from his early life, to his adulthood. We see everything that happens in his life throughout the story, how all of these events combine to shape his life and his personality, and how he grows into an adult human being.
B is your answer!!!
Hope i helped!!
!Shantiicakei
They ate from the Tree of Knowledge which God told them not to.
