Which of the Following Statements Is TRUE Regarding Drosophila Development

Which of the following statements is TRUE regarding Drosophila development?

A) Polarization of Drosophila embryos is the result of the expression of maternal-effect genes, such as bicoid.
B) Both hunchback and caudal proteins demonstrate a similar expression pattern as their corresponding mRNAs.
C) Bicoid protein could be considered a "posteriorizing" factor, whereas Nanos protein is an "anteriorizing" factor.
D) Bicoid and Nanos proteins inhibit the expression of hunchback and caudal, respectively.
E) All of these choices are correct.