Let A = {1, 2, 3, ... , 39, 40}.
(a) Write a computer program (or develop an algorithm) to generate a random six-element subset of A.
(b) For B = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37}, write a computer program (or develop an algorithm) to generate a random six-element subset of A and then determine whether it is a subset of B.