pUC vectors and many of their derivatives carry a short segment of E.coli DNA that contains the regulatory sequences of the lacZ gene which codes for

Question

( A ) amino-terminal 146 amino acids of $\alpha$-galactosidase
( B ) amino-terminal 146 amino acids of $\alpha$-galactose
( C ) amino-terminal 140 amino acids of $\alpha$-galactose
( D ) amino-terminal 140 amino acids of $\alpha$-galactosidase