Why Are the Opine Synthesis Genes Considered Expendible in a PTi

Multiple Choice

Why are the opine synthesis genes considered expendible in a pTi vector for transgenic plant creation? (Select all that apply)

A) bacterial reproduction will not be essential in the transgenic plant
B) plant anabolism is not opine-dependent
C) their removal enables larger recombinant gene fragments to be introduced into the recipient plant
D) Their contribution to virulence is offset by dual plasmid transfers
E) None is a correct choice