Q. 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