Determine which number in the set below that are integers {-15, 24 ,5/8 , 4.5, -6.25} a) {-15, 24} b) {-15, 24 ,5/8, 4.5, -6.25 } c) {5/8, 4.5, -6.25 } d) {24} e) {-15,24 , 4.5, -6.25}