Which configuration correctly sets interface ge-0/0/4 in trunk mode, carrying VLANs v10 and v20?

Which configuration correctly sets interface ge-0/0/4 in trunk mode, carrying VLANs v10 and v20?

A.
ge-0/0/4 {
unit 0 {
family ethernet-switching {
vlan {
members [ v10 v20 ];
}
}

B.
ge-0/0/4 {
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [ v10 v20 ];
}

C.
ge-0/0/4 {
vlan-tagging;
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [ v10 v20 ];
}

D.
ge-0/0/4 {
unit 10 {
family ethernet-switching;
}
unit 20 {
family ethernet-switching;
}