Which of the Following Statements BEST Describes the Activator (Ac)

Multiple Choice

Which of the following statements BEST describes the Activator (Ac) and Dissociation (Ds) transposable elements in maize (corn) ?

A) Ac elements cannot transpose unless a Ds element is present.
B) Ac contains a functional transposase gene; Ds lacks a functional transposase gene.
C) Ds contains a functional transposase gene; Ac lacks a functional transposase gene.
D) Both Ac and Ds have functional transposase genes.
E) Neither Ac nor Ds contains functional transposase genes.