Which of the Following Is True Regarding Alpha Complementation?
A)The $\beta$

Which of the following is true regarding alpha complementation?

A) The plasmid encodes the amino terminal of $\beta$ -galactosidase while the host bacterium encodes the carboxyl portion .
B) The plasmid encodes both amino and carboxyl terminals of the lacZ region.
C) The complete $\beta$ -galactosidase enzyme is made by the host.
D) When the alpha and beta regions fuse they form an inactive peptide.