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.