Which configuration example represents a Layer 2 interface configuration?

A.
ge-0/0/0 {
unit 0 {
family eth-switch;
}

B.
ge-0/0/0 {
unit 0 {
family switching;
}

C.
ge-0/0/0 {
unit 0 {
family l2-switching;
}

D.
ge-0/0/0 {
unit 0 {
family ethernet-switching;
}