According to the information in the table, which of the following boys would hear a rock fall off of a cliff a kilometer away?

Responses

a boy sitting on the grass
a boy sitting on the grass

a boy swimming in the water
a boy swimming in the water

a boy lying down with his ear to the ground
a boy lying down with his ear to the ground

a boy sitting in a tree with his ear to the bark

a boy lying down with his ear to the ground