(Q10).Match roster forms with the set builder form.

(i){P, R, I, N, C, A, L}

(ii){0}

(iii){1, 2, 3, 6, 9, 18}

(iv){3, -3}

(a) {x : x is a positive integer and is a divisor of 18}

(b) {x : x is an integer and x2 - 9 = 0}

(c) {x : x is an integer and x + 1 = 1}

(d) {x : x is a letter of the word PRINCIPAL}