 Hi and welcome to the session. I am Priyanka and I am going to help you with the following question. It says match each of the sets on the left in the roster form with the same set on the right described in the set builder form. Now these are the sets which are given to us. Now we need to match them correctly. Roster form to the same set which is described in set builder form. Now let us first look at the numbers 1, 2, 3, 6, 2, 3, N, A, T, H, E, I, C, S, 1, 3, 5, 7, 9 and on the right inside it is given X is to X is a prime number and a divisor of 6, X is to X is an odd natural number less than 10, X is to X is a natural number and a divisor of 6, X is to X is a letter of vertex mathematics. So the first the very first thing that comes into mind is that this set in the roster form is same as this set. So that means our answer will be in front of D we can write our solution as that the part D. This is what we have found out from the very first thing. Proceeding on next now we can see first of all look at X is to X is a prime number and a divisor of 6. So which of these roster form matches this 1, 2, 3, 6 but we know that 1 and 6 are not prime number so this is neglected 2 and 3. Yes this satisfies the condition and we can write our answer as that for A part the answer is this second part. Right? Proceeding on. Now let us look for the B part. Now the B part says X is to X is an odd natural number less than 10. So can you see that all these numbers are odd natural numbers and they are less than 10 so that means our answer will be for B part it will be part 4. Proceeding on to the C part as we have already known the D part X is to X is a natural number and a divisor of 6. So we know that all these numbers are natural number and by all these numbers we can divide 6 exactly so the answer will be for the C part it is part 1. Right? So this completes the question which was given to us. So in this question first we identify the single common property of the roster form and then matched it with the set builder form. So I think that was an easy one for you and I hope you enjoyed the session also. Bye for now.