A) the binding of the lac repressor to the genes for the enzymes
B) the production of enzymes for breaking down lactose
C) the removal of the promoter gene
D) the presence of lactose in the environment
![A the binding of the lac repressor to the genes for the enzymes B the production of enzymes for breaking down lactose C the removal of the promoter gene D the p class=](https://us-static.z-dn.net/files/d20/831299a9c88f5033abf051e61bf58210.jpeg)