When is the lac operon most active? A: when glucose levels are high and lactose is present. B:when glucose levels are low and lactose is absent. C: when glucose levels are low and lactose is present. D:when glucose levels are high and lactose is absent

I think the correct answer from the choices listed above is option C. The lac operon is most active when glucose levels are low and lactose is present. A lac operon is an operon required for transport and metabolism of lactose. Hope this answers the question.