How many valid dump levels can be set with ndmpcopy?

How many valid dump levels can be set with ndmpcopy?

A.
0, 1, 2, 3

B.
0, 1, 2

C.
0, 1, 2, 3, 4, 5

D.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9