The Chromosome of a Bacterial Cell Possesses the Following Genotype

The chromosome of a bacterial cell possesses the following genotype with regard to the lac operon: I⁻O⁺Z⁺Y⁻A⁻.This bacterial cell would

A) make β-galactosidase in the presence of lactose.
B) make β-galactosidase independently of lactose.
C) make β-galactosidase and galactoside permease in the presence of lactose.
D) make transacetylase in the presence of lactose.
E) make no lac gene products.