multiple choice question What is the epsilonclosure ofq1 q2

multiple choice question.

What is the epsilon-closure of{q1, q2}? Undefined {q1} {q0, q1, q2, q3} {q1, q2} {q1, q2, q3}

Solution

Answer:

E. { q1, q2,q3}

As we can see in state q1 there is not epsilon transition , therefore epsilon closure is q1.

In state q2 , there is epsilon closure from q2 to q3 , therefore epsilon closure is q2, q3

Hence epsilon closure for q1 and q2 is : {q1,q2,q3}