Which code causes only a Level 2 adjacency to be formed under the SONET interface so-2/2/2 with Frame Relay encapsulation?()
A、A.so-2/2/2 { unit0 { disable familyiso }}
B、B.isis{ level1 disable; interfaceso-2/2/2.0 { disable } interfaceall;
C、C.so-2/2/2 { unit0 { disablelevel 1; familyiso }}
D、D.isis{ level1 disable; interfaceall; }