Let U = N, and let

A = {x is an element in N | x greater or equal to 7)

B = (x is an element in N | x is odd)

C = (x is an element in N | x is a multiple of 3)

D = (x is an element in N | x is even)

Use the roster method to list all of the elements of each of the following sets.

(a) A intersection B

(b) A union B

(c) (A union B)^c

(d) A^c intersection B^c

(e) (A union B) intersection C

(f) (A intersection C) union (B intersection C)

(g) B intersection D

(h) (B intersection D)^c

(i) A - D

(j) B - D

(k) (A - D) union (B - D)

(l)(A union B) - D