The lac repressor binds it operator with a ka= 10-1 m. in a strain of e. coli, the intracellular repressor concentration is 10-12 m. induction of the lac operon

The lac repressor binds it operator with a Ka= 10-1 M. In a strain of E. coli, the intracellular repressor concentration is 10-12 M. Induction of the lac operon in this strain (a) requires lactose does not require lactose (b) (c) requires glucose (d) requires both glucose and lactose