The Auxin Produced in Arabidopsis Embryos and Bicoid Protein Produced

The auxin produced in Arabidopsis embryos and Bicoid protein produced in Drosophila embryos have what similar function?

A) Both are regulatory transcription factors that serve as cell-to-cell signals.
B) Both are cytoplasmic determinants they are loaded into eggs by cells in the mother or by female reproductive tissues.
C) Both trigger the transcription of homeotic loci genes that specify the types of structures produced at a certain position.
D) Both establish a concentration gradient that demarcates the anterior-posterior axis.