Question 7lf U = {1,2,3,4,5,6} P = {3,4,5}, Q = {2,4,6} and R = {1,2,3,4}, list the elements of {P U Q}' n RA.{1,2,3,4,5,6}B.{1,2,3,4}C.{1}D.{1,2} Objective Show full explanation