Which statement is correct regarding the isolated ports?

Which statement is correct regarding the isolated ports?

A.
Isolated ports are trunk ports that have Layer 2 connectivity with all other ports.

B.
Isolated ports are access ports that only have Layer 2 connectivity with other isolated ports.

C.
Isolated ports are access ports that only have Layer 2 connectivity with promosious ports.

D.
Isolated ports are trunk ports that have Layer 2 connectivity with all community ports.