This table can be decomposed into BCNF as AC, CE, BD, AB . In AC, no FD is present, so it is in Bcnf form (a table with 2 attributes is always in Bcnf) in CE table, C is the superkey, in BD table, B is the superkey and in AB table, A is the superkey , and it will be dependency preserving as well as lossless decomposition.