Given the current origin is gvon.com, which two zone file lines correctly
delegate the domain training.gvon.com. to a server called centauri.gvon.com.? (Choose two.)

A.
centauri.gvon.com. in NS gvon.com.

B.
gvon.com in NS centauri.gvon.com.

C.
gvon in NS centauri.gvon.com.

D.
training.gvon.com. in NS centauri.gvon.com.

E.
training in NS centauri.gvon.com.

F.
training. in NS centauri.gvon.com.