Which Junos command correctly configures the ge-0/0/0.0 interface to operate only for IS-IS Level 2?

A.
set interfaces ge-0/0/0.0 family iso level 2 enable

B.
set interfaces ge-0/0/0.0 family iso level 1 disable

C.
set protocols isis interface ge-0/0/0.0 level 2 enable

D.
set protocols isis interface ge-0/0/0.0 level 1 disable

Explanation:
Syntax: isis circuit-type [level-1 | level-2 | level-2-only]

Level-1 Establish a Level 1 adjacency if there is at least one area address in common between this system and its neighboring systems.
If Level 1 is set, this interface cannot support Level 2 adjacencies.

Level -1-2 Establish a Level 1 and Level 2 adjacency if a neighboring system is also configured as a Level -1-2 and there is at least one area address in common.
If there is no area address in common, a Level 2 adjacency is established.

Level-2-Only Establish a Level 2 adjacency if the neighboring system is configured as a Level 2-only router

Level-1 routers route traffic within a single area. Level-2 routes route traffic between areas. Level 1-2 routers route both types of traffic.

NOTE It is not necessary to configure the circuit type on point-to-point interfaces.

Use the isis circuit-type level-1 command to configure the interface to support only intra-area traffic.

Use the isis-circuit-type level-1-2 command to configure the interface to support both intra-area traffic and inter-area traffic.

Use the isis circuit-type level-2-only command to configure the interface to support only Level-2 adjacencies. This option is used on routers that are between areas to prevent transmission of unnecessary Level 1 hellos.

Factory Default: Level 1-2 adjacency.