The ABC Genes in Arabidopsis Are Considered Homeotic Genes

The ABC genes in Arabidopsis are considered homeotic genes.What could be a reason for this classification?

A) Each of the three genes codes for a different flower organ.
B) Each gene codes for regulatory transcription factors.
C) Each gene is similar in sequence to homeotic genes in Drosophila.
D) Each gene codes for proteins similar to Hox genes in mice.
E) Each gene directs different kinds of morphogenesis.