Question 1 Let ={5,6,9,10,11,12} and ={ | 3;4 18}. (a) List all elements of the set in the set notation ={...}. (b) List all elements of the sets B and (in set notation {...}). (c) List all elements of the power set () of (in set notation {...}). (d) What is the cardinality of Cartesian product ?