This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Lac operon transcription is induced by 
Select and explain. 
A. Glucose, B. Glucose with inducer, C. Inducer without glucose, D. All
C: Inducer without glucose
Answer: C: Inducer without glucose 
Explanation: C i.e. Inducer without glucose