Q. 53 Consider the machine M:
The language recognized by M is :
(A) {w ∈ {a, b}* / every a in w is followed by exactly two b’s}
(B) {w ∈ {a, b}* every a in w is followed by at least two b’}
(C) {w ∈ {a, b}* w contains the substring ‘abb’}
(D) {w ∈ {a, b}* w does not contain ‘aa’ as a substring}
Answer: (B)
Explanation: