Please provide solution for each part asap to get a upvote

15. Let A = { 0, 1, 2, 3). Define the relations R and S as follows: R = ( (0,0), (0,1), (0,3), (1,0), (1,1), (2,2), (3,0), (3,3) } S = { (0,0), (0,2), (0,3), (2,3) ) a) Is R reflexive? b) Is R symmetric? c) Is R transitive? d) Is S transitive