A Partial Diploid E

A partial diploid E. coli cell of lacI⁺lacP⁺lacO^c lacZ^-lacY^-/ lacI^- lacP⁺ lacO⁺lacZ^-lacY⁺ genotype will synthesize:

A) both lacZ and lacY gene products in the absence of lactose.
B) neither lacZ nor lacY gene products in the presence of lactose.
C) lacZ but not lacY gene product in the presence of lactose.
D) lacY but not lacZ gene product in the absence of lactose.
E) lacY but not lacZ gene product in the presence of lactose.