Assume use of the following common parameters:
iopobject $system.system.x25obj, cpu 0, altcpu 1, type (61,63), profile x25prof, recsize 32767,
adapter SW01,clip 2, line 0, startdown
Which SCF command adds an X.25 line to a SWAN concentrator?

A.
add line $X2501

B.
add device $X2501

C.
add line $ZZWAN.#X2501

D.
add device $ZZWAN.#X2501