what would explain interface ge-0/0/3.0 being active in VLANs v1, v2, and v3?

— Exhibit —
{master:0}[edit]
user@switch# show vlans
v1 {
vlan-id 1;
interface {
ge-0/0/1.0;
}
}
v2 {

vlan-id 2;
interface {
ge-0/0/2.0;
}
}
v3 {
vlan-id 3;
interface {
ge-0/0/1.0 {
}
{master:0}[edit]
user@switch# show interfaces ge-0/0/3
unit 0 {
family ethernet-switching {
port-mode trunk;
}
}
{master:0}[edit]
user@switch# run show vlans
Name Tag Interfaces
default
None
v1 1
ge-0/0/1.0*, ge-0/0/3.0*
v2 2

ge-0/0/2.0*, ge-0/0/3.0*
v3 3
ge-0/0/1.0*, ge-0/0/3.0*
— Exhibit —
Click the Exhibit button.
Referring to the exhibit, what would explain interface ge-0/0/3.0 being active in VLANs v1, v2, and
v3?

A.
You have enabled RSTP for interface ge-0/0/3.0.

B.
You have enabled MVRP for interface ge-0/0/3.0.

C.
You have enabled MSTP for interface ge-0/0/3.0.

D.
You have enabled L2PT for interface ge-0/0/3.0.