In Traditional Japanese Buddhism, Children and Elders Are Differentiated from Young

In traditional Japanese Buddhism, children and elders are differentiated from young and middle-aged adults because:

A) children and elders have just come from or are near to re-entering the spiritual realm, while young and middle-aged adults are firmly tied to the solid, earthly realm.
B) children and elders are associated with meadows and mountains, while young and middle-aged adults are associates with rivers and streams.
C) children and elders are less spiritual because they are less able to concentrate to pray than young and middle-aged adults.
D) young and middle-aged adults are associated with water, while children and elders are associated with the air.
E) young and middle-aged adults take care of spiritual matters because children and elders are more immediately concerned with accomplishing the practical tasks of daily living.