The Hox genes came to regulate each of the following in what ...

[hummingbird]

The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?
1.    identity and position of paired appendages in protostome embryos
2.    anterior-posterior orientation of segments in protostome embryos
3.    positioning of tentacles in cnidarians
4.    anterior-posterior orientation in vertebrate embryos
A) 4 → 1 → 3 → 2
B) 4 → 2 → 3 → 1
C) 4 → 2 → 1 → 3
D) 3 → 2 → 1 → 4
E) 3 → 4 → 1 → 2

[geoffrey]

Best answer would be D.

[hummingbird]

Great help lol Thanks