a. The lac repressor would be bound by lactose inactivating the repressor and allowing high levels of transcription of the lac z gene
b. The lac repressor would be bound by lactose inactivating the repressor and allowing transcription of the lac z gene however CRP would not be bound to the cap site so transcription would be low due to the high levels of cAMP
c. The lac repressor would be bound by lactose inactivating the repressor and allowing transcription of the lac z gene however CRP would not be bound to the cap site so transcription would be low due to the low levels of adenylyl cyclase
d. The lac operon would not be transcribed at all
e. The lac repressor would be bound by lactose activating the repressor and turning of the lac operon