The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of

Question

( A ) Inactivation of glycosidase enzyme in recombinant bacteria
( B ) Insertional inactivation of alpha-galactosidase in recombinant bacteria
( C ) Non-recombinant bacteria containing beta-galactosidase
( D ) Insertional inactivation of alpha-galactosidase in non-recombinant bacteria