Give counter examples or reasons why the following statements are false: a) if licl2 and li is not regular, then l2 is not regular. b) if licl2 and l2 is not regular, then li is not regular. c) if li and l2 are not regular, then liul2 is non-regular d) if li and l2 are not regular, then lınl2 is non-regular e) if li is regular and l2 is not regular, then lul2 is not regular