Given a cell with a low concentration of glucose and no lactose. Which of the following best describes the state of the Lac Operon? I) Lac Z, A and Y are expressed. Lac I is not bound. CRP is bound. RNAPII is transcribing at a high level. II) Lac Z, A and Y are not expressed. Lac I s bound. CRP is bound. RNAPII is not transcribing. III) Lac Z, A and Y are not expressed. Lac I is bound. CRP is not bound. RNAPII is not transcribing. IV) Lac Z, A and Y are expressed. Lac I is not bound. CRP is not bound. RNAPII is transcribing at a low level.