Allolactose Binding to the I Gene Product in the Regulation

Multiple Choice

Allolactose binding to the I gene product in the regulation of the lac operon is an example of what?

A) transcriptional activation by reducing repressor binding
B) transcriptional inhibition by increasing repressor binding
C) transcriptional activation by increasing activator binding
D) transcriptional inhibition by decreasing activator binding
E) architectural regulation