Refer to the exhibit. Which statement about the status of the neighbor relationship between R1 and R2 is true?

IS-IS does not use "areas" in the same way OSPF does; it uses "areas" for Level 1 routing within a single area and Level 2 routing between areas. The provided configuration indicates an IS-type mismatch, not an "area" mismatch in the OSPF sense.

Being in the same subnet is a prerequisite for forming a neighbor relationship, not a reason for it to be down. The exhibit implies they are in the same subnet as they are attempting to be neighbors.

The neighbor relationship is clearly down due to the IS-type mismatch; R2 being both Level 1 and Level 2 (if it were the case, which it isn't, it's Level 1 only) would allow it to form adjacencies with both level types, but R1 is strictly Level 2.

R1 is configured as "is-type level-2-only," meaning it only forms adjacencies with Level 2 routers, while R2 is configured as "is-type level-1," meaning it only forms adjacencies with Level 1 routers. Since their IS-IS levels are incompatible, the neighbor relationship is down.