In the Presence of Isopropylthiogalactoside (IPTG) and Glucose, Transcription of the Lac

In the presence of isopropylthiogalactoside (IPTG) and glucose, transcription of the lac operon

A) will be at maximal levels because IPTG is a nonmetabolizable inducer.
B) will be slightly above basal levels due to IPTG causing the release of repressor from the operator site but the presence of glucose prevents maximal induction.
C) will be at basal levels because the induction of the lac operon requires the presence of lactose.
D) will terminate as IPTG is an inhibitor of
E) coli RNA polymerase.