Which of These Haploid Strains Produces Permease Inducibly, but Does

Which of these haploid strains produces permease inducibly, but does not produce β- galactosidase?

A) I - P+ O+ Z - Y+
B) I+ P+ O C Z+ Y+
C) I - P+ O+ Z - Y -
D) I - P+ O+ Z+ Y+
E) I+ P+ O+ Z - Y+