Let A= (1,2,3. ...,15). B = (4.5,6....,10} . C= (2.3,4....,9) . Find the cardinality of A-(BAC). (a) {1, 2, 3,10,11,12,15} (b) {1, 2, 3,12,13,14,15, (c) {1, 2, 3,10,11,12 13,14,15; (d) {4,5,6,7,8,9}