The given figure shows lac operon model and its functioning. Select the option which correctly labels A, B, X, Y and Z marked in the figure and also identify the label (L) which is primarily responsible for the hydrolysis of the disaccharide, lactose, into galactose & glucose.

• A. ABXYZLRepressorInducer\[\beta \]-GalactosidasePermeaseTransacetylaseX
• B. RepressorInducerPermease\[\beta \]- GalactosidaseTransacetylaseY
• C. InducerRepressor\[\beta \]- GalactosidasePermeaseTransacetylaseZ
• D. InducerRepressor\[\beta \]- GalactosidaseTransacetylasePermeaseB