The Following Grammar G = (N, T, P, S)

Multiple Choice

The following grammar
G = (N, T, P, S)
N = {S, A, B}
T = {a, b, c}
P : S ? aSa
S ? aAa
A ? bB
B ? bB
B ? c is

A) is type 3
B) is type 2 but not type 3
C) is type 1 but not type 2
D) is type 0 but not type 1